MediaWiki Wiki Platform

An issue was discovered in the VisualEditor extension in MediaWiki before 1.31.13, and 1.32.x through 1.35.x before 1.35.2

CVE-2021-30153 4.3 - Medium - April 15, 2023

An issue was discovered in the VisualEditor extension in MediaWiki before 1.31.13, and 1.32.x through 1.35.x before 1.35.2. . When using VisualEditor to edit a MediaWiki user page belonging to an existing, but hidden, user, VisualEditor will disclose that the user exists. (It shouldn't because they are hidden.) This is related to ApiVisualEditor.

Exposure of Resource to Wrong Sphere

An issue was discovered in the GrowthExperiments extension for MediaWiki through 1.39.3

CVE-2023-29137 4.3 - Medium - March 31, 2023

An issue was discovered in the GrowthExperiments extension for MediaWiki through 1.39.3. The UserImpactHandler for GrowthExperiments inadvertently returns the timezone preference for arbitrary users, which can be used to de-anonymize users.

An issue was discovered in MediaWiki before 1.35.10, 1.36.x through 1.38.x before 1.38.6, and 1.39.x before 1.39.3

CVE-2023-29141 9.8 - Critical - March 31, 2023

An issue was discovered in MediaWiki before 1.35.10, 1.36.x through 1.38.x before 1.38.6, and 1.39.x before 1.39.3. An auto-block can occur for an untrusted X-Forwarded-For header.

An issue was discovered in the GrowthExperiments extension for MediaWiki through 1.39.3

CVE-2023-29140 5.3 - Medium - March 31, 2023

An issue was discovered in the GrowthExperiments extension for MediaWiki through 1.39.3. Attackers might be able to see edits for which the username has been hidden, because there is no check for rev_deleted.

An issue was discovered in the CheckUser extension for MediaWiki through 1.39.3

CVE-2023-29139 6.5 - Medium - March 31, 2023

An issue was discovered in the CheckUser extension for MediaWiki through 1.39.3. When a user with checkuserlog permissions makes many CheckUserLog API requests in some configurations, denial of service can occur (RequestTimeoutException or upstream request timeout).

An issue was discovered in the CheckUser extension for MediaWiki through 1.39.x

CVE-2022-39193 5.3 - Medium - January 20, 2023

An issue was discovered in the CheckUser extension for MediaWiki through 1.39.x. Various components of this extension can expose information on the performer of edits and logged actions. This information should not allow public viewing: it is supposed to be viewable only by users with suppression rights.

Exposure of Resource to Wrong Sphere

An issue was discovered in MediaWiki before 1.35.9, 1.36.x through 1.38.x before 1.38.5, and 1.39.x before 1.39.1

CVE-2023-22912 5.3 - Medium - January 20, 2023

An issue was discovered in MediaWiki before 1.35.9, 1.36.x through 1.38.x before 1.38.5, and 1.39.x before 1.39.1. CheckUser TokenManager insecurely uses AES-CTR encryption with a repeated (aka re-used) nonce, allowing an adversary to decrypt.

Use of Insufficiently Random Values

An issue was discovered in MediaWiki before 1.35.9, 1.36.x through 1.38.x before 1.38.5, and 1.39.x before 1.39.1

CVE-2023-22910 5.4 - Medium - January 20, 2023

An issue was discovered in MediaWiki before 1.35.9, 1.36.x through 1.38.x before 1.38.5, and 1.39.x before 1.39.1. There is XSS in Wikibase date formatting via wikibase-time-precision-* fields. This allows JavaScript execution by staff/admin users who do not intentionally have the editsitejs capability.

XSS

An issue was discovered in MediaWiki before 1.35.9, 1.36.x through 1.38.x before 1.38.5, and 1.39.x before 1.39.1

CVE-2022-47927 5.5 - Medium - January 12, 2023

An issue was discovered in MediaWiki before 1.35.9, 1.36.x through 1.38.x before 1.38.5, and 1.39.x before 1.39.1. When installing with a pre-existing data directory that has weak permissions, the SQLite files are created with file mode 0644, i.e., world readable to local users. These files include credentials data.

Incorrect Permission Assignment for Critical Resource

In the GrowthExperiments extension for MediaWiki through 1.39, the growthmanagementorlist API

CVE-2023-22945 4.3 - Medium - January 11, 2023

In the GrowthExperiments extension for MediaWiki through 1.39, the growthmanagementorlist API allows blocked users (blocked in ApiManageMentorList) to enroll as mentors or edit any of their mentorship-related properties.

AuthZ

An issue was discovered in MediaWiki before 1.35.9, 1.36.x through 1.38.x before 1.38.5, and 1.39.x before 1.39.1

CVE-2023-22911 6.1 - Medium - January 10, 2023

An issue was discovered in MediaWiki before 1.35.9, 1.36.x through 1.38.x before 1.38.5, and 1.39.x before 1.39.1. E-Widgets does widget replacement in HTML attributes, which can lead to XSS, because widget authors often do not expect that their widget is executed in an HTML attribute context.

XSS

An issue was discovered in MediaWiki before 1.35.9, 1.36.x through 1.38.x before 1.38.5, and 1.39.x before 1.39.1

CVE-2023-22909 5.3 - Medium - January 10, 2023

An issue was discovered in MediaWiki before 1.35.9, 1.36.x through 1.38.x before 1.38.5, and 1.39.x before 1.39.1. SpecialMobileHistory allows remote attackers to cause a denial of service because database queries are slow.

An issue was discovered in MediaWiki before 1.35.8, 1.36.x and 1.37.x before 1.37.5, and 1.38.x before 1.38.3

CVE-2022-41767 5.3 - Medium - December 26, 2022

An issue was discovered in MediaWiki before 1.35.8, 1.36.x and 1.37.x before 1.37.5, and 1.38.x before 1.38.3. When changes made by an IP address are reassigned to a user (using reassignEdits.php), the changes will still be attributed to the IP address on Special:Contributions when doing a range lookup.

An issue was discovered in MediaWiki before 1.35.8, 1.36.x and 1.37.x before 1.37.5, and 1.38.x before 1.38.3

CVE-2022-41765 5.3 - Medium - December 26, 2022

An issue was discovered in MediaWiki before 1.35.8, 1.36.x and 1.37.x before 1.37.5, and 1.38.x before 1.38.3. HTMLUserTextField exposes the existence of hidden users.

Side Channel Attack

An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1

CVE-2021-44856 5.3 - Medium - December 26, 2022

An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. A title blocked by AbuseFilter can be created via Special:ChangeContentModel due to the mishandling of the EditFilterMergedContent hook return value.

Improper Check for Unusual or Exceptional Conditions

An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1

CVE-2021-44855 5.4 - Medium - December 26, 2022

An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. There is Blind Stored XSS via a URL to the Upload Image feature.

XSS

An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1

CVE-2021-44854 5.3 - Medium - December 26, 2022

An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. The REST API publicly caches results from private wikis.

Exposure of Resource to Wrong Sphere

An issue was discovered in the Translate extension in MediaWiki through 1.36.2

CVE-2021-42049 6.5 - Medium - September 29, 2022

An issue was discovered in the Translate extension in MediaWiki through 1.36.2. Oversighters cannot undo revisions or oversight on pages where they suppressed information (such as PII). This allows oversighters to whitewash revisions.

An issue was discovered in the Growth extension in MediaWiki through 1.36.2

CVE-2021-42048 4.8 - Medium - September 29, 2022

An issue was discovered in the Growth extension in MediaWiki through 1.36.2. Any admin can add arbitrary JavaScript code to the Newcomer home page footer, which can be executed by viewers with zero edits.

XSS

An issue was discovered in the Growth extension in MediaWiki through 1.36.2

CVE-2021-42047 5.4 - Medium - September 29, 2022

An issue was discovered in the Growth extension in MediaWiki through 1.36.2. On any Wiki with the Mentor Dashboard feature enabled, users can login with a mentor account and trigger an XSS payload (such as alert) via Growthexperiments-mentor-dashboard-mentee-overview-no-js-fallback.

XSS

An issue was discovered in the GlobalWatchlist extension in MediaWiki through 1.36.2

CVE-2021-42046 6.1 - Medium - September 29, 2022

An issue was discovered in the GlobalWatchlist extension in MediaWiki through 1.36.2. The rev-deleted-user and ntimes messages were not properly escaped and allowed for users to inject HTML and JavaScript.

XSS

An issue was discovered in SecurePoll in the Growth extension in MediaWiki through 1.36.2

CVE-2021-42045 5.4 - Medium - September 29, 2022

An issue was discovered in SecurePoll in the Growth extension in MediaWiki through 1.36.2. Simple polls allow users to create alerts by changing their User-Agent HTTP header and submitting a vote.

XSS

A denial-of-service issue was discovered in MediaWiki 1.37.x before 1.37.2

CVE-2022-28204 7.5 - High - September 19, 2022

A denial-of-service issue was discovered in MediaWiki 1.37.x before 1.37.2. Rendering of w/index.php?title=Special%3AWhatLinksHere&target=Property%3AP31&namespace=1&invert=1 can take more than thirty seconds. There is a DDoS risk.

A denial-of-service issue was discovered in MediaWiki before 1.35.6, 1.36.x before 1.36.4, and 1.37.x before 1.37.2

CVE-2022-28203 7.5 - High - September 19, 2022

A denial-of-service issue was discovered in MediaWiki before 1.35.6, 1.36.x before 1.36.4, and 1.37.x before 1.37.2. When many files exist, requesting Special:NewFiles with actor as a condition can result in a very long running query.

Release of Invalid Pointer or Reference

An issue was discovered in MediaWiki before 1.35.6, 1.36.x before 1.36.4, and 1.37.x before 1.37.2

CVE-2022-28201 4.4 - Medium - September 19, 2022

An issue was discovered in MediaWiki before 1.35.6, 1.36.x before 1.36.4, and 1.37.x before 1.37.2. Users with the editinterface permission can trigger infinite recursion, because a bare local interwiki is mishandled for the mainpage message.

Stack Exhaustion

An issue was discovered in the MediaWiki through 1.38.2

CVE-2022-39194 4.9 - Medium - September 02, 2022

An issue was discovered in the MediaWiki through 1.38.2. The community configuration pages for the GrowthExperiments extension could cause a site to become unavailable due to insufficient validation when certain actions (including page moves) were performed.

Resource Exhaustion

An issue was discovered in MediaWiki before 1.37.3 and 1.38.x before 1.38.1

CVE-2022-34912 6.1 - Medium - July 02, 2022

An issue was discovered in MediaWiki before 1.37.3 and 1.38.x before 1.38.1. The contributions-title, used on Special:Contributions, is used as page title without escaping. Hence, in a non-default configuration where a username contains HTML entities, it won't be escaped.

An issue was discovered in MediaWiki before 1.35.7, 1.36.x and 1.37.x before 1.37.3, and 1.38.x before 1.38.1

CVE-2022-34911 6.1 - Medium - July 02, 2022

An issue was discovered in MediaWiki before 1.35.7, 1.36.x and 1.37.x before 1.37.3, and 1.38.x before 1.38.1. XSS can occur in configurations that allow a JavaScript payload in a username. After account creation, when it sets the page title to "Welcome" followed by the username, the username is not escaped: SpecialCreateAccount::successfulAction() calls ::showSuccessPage() with a message as second parameter, and OutputPage::setPageTitle() uses text().

XSS

An issue was discovered in MediaWiki through 1.38.1

CVE-2022-34750 7.5 - High - June 28, 2022

An issue was discovered in MediaWiki through 1.38.1. The lemma length of a Wikibase lexeme is currently capped at a thousand characters. Unfortunately, this length is not validated, allowing much larger lexemes to be created, which introduces various denial-of-service attack vectors within the Wikibase and WikibaseLexeme extensions. This is related to Special:NewLexeme and Special:NewProperty.

Allocation of Resources Without Limits or Throttling

An issue was discovered in MediaWiki through 1.37.2

CVE-2022-28323 7.5 - High - April 30, 2022

An issue was discovered in MediaWiki through 1.37.2. The SecurePoll extension allows a leak because sorting by timestamp is supported,

The Nimbus skin for MediaWiki through 1.37.2 (before 6f9c8fb868345701d9544a54d9752515aace39df)

CVE-2022-29907 6.1 - Medium - April 29, 2022

The Nimbus skin for MediaWiki through 1.37.2 (before 6f9c8fb868345701d9544a54d9752515aace39df) allows XSS in Advertise link messages.

XSS

The admin API module in the QuizGame extension for MediaWiki through 1.37.2 (before 665e33a68f6fa1167df99c0aa18ed0157cdf9f66) omits a check for the quizadmin user.

CVE-2022-29906 9.8 - Critical - April 29, 2022

The admin API module in the QuizGame extension for MediaWiki through 1.37.2 (before 665e33a68f6fa1167df99c0aa18ed0157cdf9f66) omits a check for the quizadmin user.

AuthZ

The FanBoxes extension for MediaWiki through 1.37.2 (before 027ffb0b9d6fe0d823810cf03f5b562a212162d4)

CVE-2022-29905 4.3 - Medium - April 29, 2022

The FanBoxes extension for MediaWiki through 1.37.2 (before 027ffb0b9d6fe0d823810cf03f5b562a212162d4) allows Special:UserBoxes CSRF.

Session Riding

The SemanticDrilldown extension for MediaWiki through 1.37.2 (before e688bdba6434591b5dff689a45e4d53459954773)

CVE-2022-29904 9.8 - Critical - April 29, 2022

The SemanticDrilldown extension for MediaWiki through 1.37.2 (before e688bdba6434591b5dff689a45e4d53459954773) allows SQL injection with certain '-' and '_' constraints.

SQL Injection

The Private Domains extension for MediaWiki through 1.37.2 (before 1ad65d4c1c199b375ea80988d99ab51ae068f766) allows CSRF for editing pages

CVE-2022-29903 4.3 - Medium - April 29, 2022

The Private Domains extension for MediaWiki through 1.37.2 (before 1ad65d4c1c199b375ea80988d99ab51ae068f766) allows CSRF for editing pages that store the extension's configuration. The attacker must trigger a POST request to Special:PrivateDomains.

Session Riding

An issue was discovered in MediaWiki through 1.37.1

CVE-2022-28206 9.8 - Critical - March 30, 2022

An issue was discovered in MediaWiki through 1.37.1. ImportPlanValidator.php in the FileImporter extension mishandles the check for edit rights.

An issue was discovered in MediaWiki through 1.37.1

CVE-2022-28205 9.8 - Critical - March 30, 2022

An issue was discovered in MediaWiki through 1.37.1. The CentralAuth extension mishandles a ttl issue for groups expiring in the future.

An issue was discovered in Mediawiki through 1.37.1

CVE-2022-28209 9.8 - Critical - March 30, 2022

An issue was discovered in Mediawiki through 1.37.1. The check for the override-antispoof permission in the AntiSpoof extension is incorrect.

An XSS issue was discovered in MediaWiki before 1.35.6, 1.36.x before 1.36.4, and 1.37.x before 1.37.2

CVE-2022-28202 6.1 - Medium - March 30, 2022

An XSS issue was discovered in MediaWiki before 1.35.6, 1.36.x before 1.36.4, and 1.37.x before 1.37.2. The widthheight, widthheightpage, and nbytes properties of messages are not escaped when used in galleries or Special:RevisionDelete.

XSS

MediaWiki before 1.23.16, 1.24.x through 1.27.x before 1.27.2, and 1.28.x before 1.28.1 allows remote attackers to discover the IP addresses of Wiki visitors via a style="background-image: attr(title url);" attack within a DIV element

CVE-2017-0371 7.5 - High - February 18, 2022

MediaWiki before 1.23.16, 1.24.x through 1.27.x before 1.27.2, and 1.28.x before 1.28.1 allows remote attackers to discover the IP addresses of Wiki visitors via a style="background-image: attr(title url);" attack within a DIV element that has an attacker-controlled URL in the title attribute.

An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1

CVE-2021-46150 4.8 - Medium - January 10, 2022

An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. Special:CheckUserLog allows CheckUser XSS because of date mishandling, as demonstrated by an XSS payload in MediaWiki:October.

XSS

An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1

CVE-2021-46149 7.5 - High - January 10, 2022

An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. A denial of service (resource consumption) can be accomplished by searching for a very long key in a Language Name Search.

Resource Exhaustion

An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1

CVE-2021-46148 6.5 - Medium - January 10, 2022

An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. Some unprivileged users can view confidential information (e.g., IP addresses and User-Agent headers for election traffic) on a testwiki SecurePoll instance.

Information Disclosure

An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1

CVE-2021-46147 8.8 - High - January 10, 2022

An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. MassEditRegex allows CSRF.

Session Riding

An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1

CVE-2021-46146 5.4 - Medium - January 10, 2022

An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. The WikibaseMediaInfo component is vulnerable to XSS via the caption fields for a given media file.

XSS

In MediaWiki through 1.37, XSS can occur in Wikibase because an external identifier property can have a URL format

CVE-2021-45472 6.1 - Medium - December 24, 2021

In MediaWiki through 1.37, XSS can occur in Wikibase because an external identifier property can have a URL format that includes a $1 formatter substitution marker, and the javascript: URL scheme (among others) can be used.

XSS

In MediaWiki through 1.37, the Special:ImportFile URI (aka FileImporter)

CVE-2021-45474 6.1 - Medium - December 24, 2021

In MediaWiki through 1.37, the Special:ImportFile URI (aka FileImporter) allows XSS, as demonstrated by the clientUrl parameter.

XSS

In MediaWiki through 1.37, Wikibase item descriptions

CVE-2021-45473 6.1 - Medium - December 24, 2021

In MediaWiki through 1.37, Wikibase item descriptions allow XSS, which is triggered upon a visit to an action=info URL (aka a page-information sidebar).

XSS

In MediaWiki through 1.37, blocked IP addresses are

CVE-2021-45471 5.3 - Medium - December 24, 2021

In MediaWiki through 1.37, blocked IP addresses are allowed to edit EntitySchema items.

An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1

CVE-2021-44858 7.5 - High - December 20, 2021

An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. It is possible to use action=edit&undo= followed by action=mcrundo and action=mcrrestore to view private pages on a private wiki that has at least one page set in $wgWhitelistRead.

Incorrect Default Permissions

An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1

CVE-2021-45038 5.3 - Medium - December 17, 2021

An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. By using an action=rollback query, attackers can view private wiki contents.

Information Disclosure

An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1

CVE-2021-44857 6.5 - Medium - December 17, 2021

An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. It is possible to use action=mcrundo followed by action=mcrrestore to replace the content of any arbitrary page (that the user doesn't have edit rights for). This applies to any public wiki, or a private wiki that has at least one page set in $wgWhitelistRead.

AuthZ

MediaWiki before 1.36.2 allows XSS

CVE-2021-41798 6.1 - Medium - October 11, 2021

MediaWiki before 1.36.2 allows XSS. Month related MediaWiki messages are not escaped before being used on the Special:Search results page.

XSS

MediaWiki before 1.36.2 allows a denial of service (resource consumption because of lengthy query processing time)

CVE-2021-41800 5.3 - Medium - October 11, 2021

MediaWiki before 1.36.2 allows a denial of service (resource consumption because of lengthy query processing time). Visiting Special:Contributions can sometimes result in a long running SQL query because PoolCounter protection is mishandled.

Allocation of Resources Without Limits or Throttling

MediaWiki before 1.36.2 allows a denial of service (resource consumption because of lengthy query processing time)

CVE-2021-41799 7.5 - High - October 11, 2021

MediaWiki before 1.36.2 allows a denial of service (resource consumption because of lengthy query processing time). ApiQueryBacklinks (action=query&list=backlinks) can cause a full table scan.

Allocation of Resources Without Limits or Throttling

The ReplaceText extension through 1.41 for MediaWiki has Incorrect Access Control

CVE-2021-41801 8.8 - High - October 11, 2021

The ReplaceText extension through 1.41 for MediaWiki has Incorrect Access Control. When a user is blocked after submitting a replace job, the job is still run, even if it may be run at a later time (due to the job queue backlog)

An issue was discovered in CentralAuth in MediaWiki through 1.36.2

CVE-2021-42041 6.1 - Medium - October 06, 2021

An issue was discovered in CentralAuth in MediaWiki through 1.36.2. The rightsnone MediaWiki message was not being properly sanitized and allowed for the injection and execution of HTML and JavaScript via the setchange log.

XSS

An issue was discovered in MediaWiki through 1.36.2

CVE-2021-42040 7.5 - High - October 06, 2021

An issue was discovered in MediaWiki through 1.36.2. A parser function related to loop control allowed for an infinite loop (and php-fpm hang) within the Loops extension because egLoopsCountLimit is mishandled. This could lead to memory exhaustion.

Infinite Loop

An issue was discovered in the Mentor dashboard in the GrowthExperiments extension in MediaWiki through 1.36.2

CVE-2021-42044 4.8 - Medium - October 06, 2021

An issue was discovered in the Mentor dashboard in the GrowthExperiments extension in MediaWiki through 1.36.2. The Growthexperiments-mentor-dashboard-mentee-overview-add-filter-total-edits-headline, growthexperiments-mentor-dashboard-mentee-overview-add-filter-starred-headline, growthexperiments-mentor-dashboard-mentee-overview-info-text, growthexperiments-mentor-dashboard-mentee-overview-info-legend-headline, and growthexperiments-mentor-dashboard-mentee-overview-active-ago MediaWiki messages were not being properly sanitized and allowed for the injection and execution of HTML and JavaScript.

XSS

An issue was discovered in Special:MediaSearch in the MediaSearch extension in MediaWiki through 1.36.2

CVE-2021-42043 6.1 - Medium - October 06, 2021

An issue was discovered in Special:MediaSearch in the MediaSearch extension in MediaWiki through 1.36.2. The suggestion text (a parameter to mediasearch-did-you-mean) was not being properly sanitized and allowed for the injection and execution of HTML and JavaScript via the intitle: search operator within the query.

XSS

An issue was discovered in SpecialEditGrowthConfig in the GrowthExperiments extension in MediaWiki through 1.36.2

CVE-2021-42042 4.8 - Medium - October 06, 2021

An issue was discovered in SpecialEditGrowthConfig in the GrowthExperiments extension in MediaWiki through 1.36.2. The growthexperiments-edit-config-error-invalid-title MediaWiki message was not being properly sanitized and allowed for the injection and execution of HTML and JavaScript.

XSS

An issue was discovered in the Oauth extension for MediaWiki through 1.35.2

CVE-2021-31556 9.8 - Critical - August 12, 2021

An issue was discovered in the Oauth extension for MediaWiki through 1.35.2. MWOAuthConsumerSubmitControl.php does not ensure that the length of an RSA key will fit in a MySQL blob.

Use of a Broken or Risky Cryptographic Algorithm

An issue was discovered in the FileImporter extension in MediaWiki through 1.36

CVE-2021-36132 8.8 - High - July 02, 2021

An issue was discovered in the FileImporter extension in MediaWiki through 1.36. For certain relaxed configurations of the $wgFileImporterRequiredRight variable, it might not validate all appropriate user rights, thus allowing a user with insufficient rights to perform operations (specifically file uploads) that they should not be allowed to perform.

AuthZ

An XSS issue was discovered in the SportsTeams extension in MediaWiki through 1.36

CVE-2021-36131 4.8 - Medium - July 02, 2021

An XSS issue was discovered in the SportsTeams extension in MediaWiki through 1.36. Within several special pages, a privileged user could inject arbitrary HTML and JavaScript within various data fields. The attack could easily propagate across many pages for many users.

XSS

An XSS issue was discovered in the SocialProfile extension in MediaWiki through 1.36

CVE-2021-36130 4.8 - Medium - July 02, 2021

An XSS issue was discovered in the SocialProfile extension in MediaWiki through 1.36. Within several gift-related special pages, a privileged user with the awardmanage right could inject arbitrary HTML and JavaScript within various gift-related data fields. The attack could easily propagate across many pages for many users.

XSS

An issue was discovered in the Translate extension in MediaWiki through 1.36

CVE-2021-36129 4.3 - Medium - July 02, 2021

An issue was discovered in the Translate extension in MediaWiki through 1.36. The Aggregategroups Action API module does not validate the parameter for aggregategroup when action=remove is set, thus allowing users with the translate-manage right to silently delete various groups' metadata.

Incorrect Permission Assignment for Critical Resource

An issue was discovered in the CentralAuth extension in MediaWiki through 1.36

CVE-2021-36128 9.8 - Critical - July 02, 2021

An issue was discovered in the CentralAuth extension in MediaWiki through 1.36. Autoblocks for CentralAuth-issued suppression blocks are not properly implemented.

Improper Handling of Exceptional Conditions

An issue was discovered in the CentralAuth extension in MediaWiki through 1.36

CVE-2021-36127 4.3 - Medium - July 02, 2021

An issue was discovered in the CentralAuth extension in MediaWiki through 1.36. The Special:GlobalUserRights page provided search results which, for a suppressed MediaWiki user, were different than for any other user, thus easily disclosing suppressed accounts (which are supposed to be completely hidden).

Insecure Storage of Sensitive Information

An issue was discovered in the AbuseFilter extension in MediaWiki through 1.36

CVE-2021-36126 9.8 - Critical - July 02, 2021

An issue was discovered in the AbuseFilter extension in MediaWiki through 1.36. If the MediaWiki:Abusefilter-blocker message is invalid within the content language, the filter user falls back to the English version, but that English version could also be invalid on a wiki. This would result in a fatal error, and potentially fail to block or restrict a potentially nefarious user.

An issue was discovered in the CentralAuth extension in MediaWiki through 1.36

CVE-2021-36125 7.5 - High - July 02, 2021

An issue was discovered in the CentralAuth extension in MediaWiki through 1.36. The Special:GlobalRenameRequest page is vulnerable to infinite loops and denial of service attacks when a user's current username is beyond an arbitrary maximum configuration value (MaxNameChars).

Infinite Loop

In MediaWiki before 1.31.15, 1.32.x through 1.35.x before 1.35.3, and 1.36.x before 1.36.1, bots have certain unintended API access

CVE-2021-35197 7.5 - High - July 02, 2021

In MediaWiki before 1.31.15, 1.32.x through 1.35.x before 1.35.3, and 1.36.x before 1.36.1, bots have certain unintended API access. When a bot account has a "sitewide block" applied, it is able to still "purge" pages through the MediaWiki Action API (which a "sitewide block" should have prevented).

AuthZ

An issue was discovered in the AbuseFilter extension for MediaWiki through 1.35.2

CVE-2021-31545 5.3 - Medium - April 22, 2021

An issue was discovered in the AbuseFilter extension for MediaWiki through 1.35.2. The page_recent_contributors leaked the existence of certain deleted MediaWiki usernames, related to rev_deleted.

Information Disclosure

An issue was discovered in the AbuseFilter extension for MediaWiki through 1.35.2

CVE-2021-31546 4.3 - Medium - April 22, 2021

An issue was discovered in the AbuseFilter extension for MediaWiki through 1.35.2. It incorrectly logged sensitive suppression deletions, which should not have been visible to users with access to view AbuseFilter log data.

Information Disclosure

An issue was discovered in the AbuseFilter extension for MediaWiki through 1.35.2

CVE-2021-31547 4.3 - Medium - April 22, 2021

An issue was discovered in the AbuseFilter extension for MediaWiki through 1.35.2. Its AbuseFilterCheckMatch API reveals suppressed edits and usernames to unprivileged users through the iteration of crafted AbuseFilter rules.

Information Disclosure

An issue was discovered in the AbuseFilter extension for MediaWiki through 1.35.2

CVE-2021-31548 6.5 - Medium - April 22, 2021

An issue was discovered in the AbuseFilter extension for MediaWiki through 1.35.2. A MediaWiki user who is partially blocked or was unsuccessfully blocked could bypass AbuseFilter and have their edits completed.

AuthZ

An issue was discovered in the AbuseFilter extension for MediaWiki through 1.35.2

CVE-2021-31549 4.3 - Medium - April 22, 2021

An issue was discovered in the AbuseFilter extension for MediaWiki through 1.35.2. The Special:AbuseFilter/examine form allowed for the disclosure of suppressed MediaWiki usernames to unprivileged users.

Information Disclosure

An issue was discovered in the CommentBox extension for MediaWiki through 1.35.2

CVE-2021-31550 5.4 - Medium - April 22, 2021

An issue was discovered in the CommentBox extension for MediaWiki through 1.35.2. Via crafted configuration variables, a malicious actor could introduce XSS payloads into various layers.

XSS

An issue was discovered in the PageForms extension for MediaWiki through 1.35.2

CVE-2021-31551 6.1 - Medium - April 22, 2021

An issue was discovered in the PageForms extension for MediaWiki through 1.35.2. Crafted payloads for Token-related query parameters allowed for XSS on certain PageForms-managed MediaWiki pages.

XSS

An issue was discovered in the AbuseFilter extension for MediaWiki through 1.35.2

CVE-2021-31552 5.4 - Medium - April 22, 2021

An issue was discovered in the AbuseFilter extension for MediaWiki through 1.35.2. It incorrectly executed certain rules related to blocking accounts after account creation. Such rules would allow for user accounts to be created while blocking only the IP address used to create an account (and not the user account itself). Such rules could also be used by a nefarious, unprivileged user to catalog and enumerate any number of IP addresses related to these account creations.

AuthZ

An issue was discovered in the CheckUser extension for MediaWiki through 1.35.2

CVE-2021-31553 6.5 - Medium - April 22, 2021

An issue was discovered in the CheckUser extension for MediaWiki through 1.35.2. MediaWiki usernames with trailing whitespace could be stored in the cu_log database table such that denial of service occurred for certain CheckUser extension pages and functionality. For example, the attacker could turn off Special:CheckUserLog and thus interfere with usage tracking.

Unquoted Search Path or Element

An issue was discovered in the AbuseFilter extension for MediaWiki through 1.35.2

CVE-2021-31554 5.4 - Medium - April 22, 2021

An issue was discovered in the AbuseFilter extension for MediaWiki through 1.35.2. It improperly handled account blocks for certain automatically created MediaWiki user accounts, thus allowing nefarious users to remain unblocked.

AuthZ

An issue was discovered in the Oauth extension for MediaWiki through 1.35.2

CVE-2021-31555 7.5 - High - April 22, 2021

An issue was discovered in the Oauth extension for MediaWiki through 1.35.2. It did not validate the oarc_version (aka oauth_registered_consumer.oarc_version) parameter's length.

Improper Input Validation

An issue was discovered in MediaWiki before 1.31.13 and 1.32.x through 1.35.x before 1.35.2

CVE-2021-30152 4.3 - Medium - April 09, 2021

An issue was discovered in MediaWiki before 1.31.13 and 1.32.x through 1.35.x before 1.35.2. When using the MediaWiki API to "protect" a page, a user is currently able to protect to a higher level than they currently have permissions for.

Improper Privilege Management

An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2

CVE-2021-30155 4.3 - Medium - April 09, 2021

An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. ContentModelChange does not check if a user has correct permissions to create and set the content model of a nonexistent page.

AuthZ

An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2

CVE-2021-30156 4.3 - Medium - April 09, 2021

An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. Special:Contributions can leak that a "hidden" user exists.

Information Disclosure

An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2

CVE-2021-30159 4.3 - Medium - April 09, 2021

An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. Users can bypass intended restrictions on deleting pages in certain "fast double move" situations. MovePage::isValidMoveTarget() uses FOR UPDATE, but it's only called if Title::getArticleID() returns non-zero with no special flags. Next, MovePage::moveToInternal() will delete the page if getArticleID(READ_LATEST) is non-zero. Therefore, if the page is missing in the replica DB, isValidMove() will return true, and then moveToInternal() will unconditionally delete the page if it can be found in the master.

An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2

CVE-2021-30154 6.1 - Medium - April 06, 2021

An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. On Special:NewFiles, all the mediastatistics-header-* messages are output in HTML unescaped, leading to XSS.

XSS

An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2

CVE-2021-30154 6.1 - Medium - April 06, 2021

An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. On Special:NewFiles, all the mediastatistics-header-* messages are output in HTML unescaped, leading to XSS.

XSS

An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2

CVE-2021-30158 5.3 - Medium - April 06, 2021

An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. Blocked users are unable to use Special:ResetTokens. This has security relevance because a blocked user might have accidentally shared a token, or might know that a token has been compromised, and yet is not able to block any potential future use of the token by an unauthorized party.

authentification

An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2

CVE-2021-30158 5.3 - Medium - April 06, 2021

An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. Blocked users are unable to use Special:ResetTokens. This has security relevance because a blocked user might have accidentally shared a token, or might know that a token has been compromised, and yet is not able to block any potential future use of the token by an unauthorized party.

authentification

An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2

CVE-2021-30157 6.1 - Medium - April 06, 2021

An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. On ChangesList special pages such as Special:RecentChanges and Special:Watchlist, some of the rcfilters-filter-* label messages are output in HTML unescaped, leading to XSS.

XSS

An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2

CVE-2021-30157 6.1 - Medium - April 06, 2021

An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. On ChangesList special pages such as Special:RecentChanges and Special:Watchlist, some of the rcfilters-filter-* label messages are output in HTML unescaped, leading to XSS.

XSS

The API in the Push extension for MediaWiki through 1.35 did not require an edit token in ApiPushBase.php and therefore facilitated a CSRF attack.

CVE-2020-29004 8.8 - High - January 29, 2021

The API in the Push extension for MediaWiki through 1.35 did not require an edit token in ApiPushBase.php and therefore facilitated a CSRF attack.

Session Riding

The API in the Push extension for MediaWiki through 1.35 used cleartext for ApiPush credentials

CVE-2020-29005 7.5 - High - January 29, 2021

The API in the Push extension for MediaWiki through 1.35 used cleartext for ApiPush credentials, allowing for potential information disclosure.

Insufficiently Protected Credentials

An issue was discovered in the GlobalUsage extension for MediaWiki through 1.35.1

CVE-2020-35622 6.1 - Medium - December 21, 2020

An issue was discovered in the GlobalUsage extension for MediaWiki through 1.35.1. SpecialGlobalUsage.php calls WikiMap::makeForeignLink unsafely. The $page variable within the formatItem function was not being properly escaped, allowing for XSS under certain conditions.

XSS

An issue was discovered in the CasAuth extension for MediaWiki through 1.35.1

CVE-2020-35623 7.5 - High - December 21, 2020

An issue was discovered in the CasAuth extension for MediaWiki through 1.35.1. Due to improper username validation, it allowed user impersonation with trivial manipulations of certain characters within a given username. An ordinary user may be able to login as a "bureaucrat user" who has a similar username, as demonstrated by usernames that differ only in (1) bidirectional override symbols or (2) blank space.

Insufficiently Protected Credentials

An issue was discovered in the SecurePoll extension for MediaWiki through 1.35.1

CVE-2020-35624 5.3 - Medium - December 21, 2020

An issue was discovered in the SecurePoll extension for MediaWiki through 1.35.1. The non-admin vote list contains a full vote timestamp, which may provide unintended clues about how a voting process unfolded.

Side Channel Attack

An issue was discovered in the Widgets extension for MediaWiki through 1.35.1

CVE-2020-35625 8.8 - High - December 21, 2020

An issue was discovered in the Widgets extension for MediaWiki through 1.35.1. Any user with the ability to edit pages within the Widgets namespace could call any static function within any class (defined within PHP or MediaWiki) via a crafted HTML comment, related to a Smarty template. For example, a person in the Widget Editors group could use \MediaWiki\Shell\Shell::command within a comment.

Incorrect Permission Assignment for Critical Resource

An issue was discovered in the PushToWatch extension for MediaWiki through 1.35.1

CVE-2020-35626 8.8 - High - December 21, 2020

An issue was discovered in the PushToWatch extension for MediaWiki through 1.35.1. The primary form did not implement an anti-CSRF token and therefore was completely vulnerable to CSRF attacks against onSkinAddFooterLinks in PushToWatch.php.

Session Riding

In MediaWiki before 1.35.1, the combination of Html::rawElement and Message::text leads to XSS because the definition of MediaWiki:recentchanges-legend-watchlistexpiry can be changed onwiki so

CVE-2020-35474 6.1 - Medium - December 18, 2020

In MediaWiki before 1.35.1, the combination of Html::rawElement and Message::text leads to XSS because the definition of MediaWiki:recentchanges-legend-watchlistexpiry can be changed onwiki so that the output is raw HTML.

XSS