GNU Mailman

GNU Mailman 2.1.39, as bundled in cPanel (and WHM), allows unauthenticated attackers to read arbitrary files via

CVE-2025-43919 7.5 - High - April 20, 2025

GNU Mailman 2.1.39, as bundled in cPanel (and WHM), allows unauthenticated attackers to read arbitrary files via ../ directory traversal at /mailman/private/mailman (aka the private archive authentication endpoint) via the username parameter. NOTE: multiple third parties report that they are unable to reproduce this, regardless of whether cPanel or WHM is used.

Directory traversal

GNU Mailman 2.1.39, as bundled in cPanel (and WHM), in certain external archiver configurations

CVE-2025-43920 8.1 - High - April 20, 2025

GNU Mailman 2.1.39, as bundled in cPanel (and WHM), in certain external archiver configurations, allows unauthenticated attackers to execute arbitrary OS commands via shell metacharacters in an email Subject line. NOTE: multiple third parties report that they are unable to reproduce this, regardless of whether cPanel or WHM is used.

Shell injection

GNU Mailman 2.1.39, as bundled in cPanel (and WHM), allows unauthenticated attackers to create lists via the /mailman/create endpoint

CVE-2025-43921 5.3 - Medium - April 20, 2025

GNU Mailman 2.1.39, as bundled in cPanel (and WHM), allows unauthenticated attackers to create lists via the /mailman/create endpoint. NOTE: multiple third parties report that they are unable to reproduce this, regardless of whether cPanel or WHM is used.

AuthZ

An issue was discovered in Mailman Core before 3.3.5

CVE-2021-34337 6.3 - Medium - April 15, 2023

An issue was discovered in Mailman Core before 3.3.5. An attacker with access to the REST API could use timing attacks to determine the value of the configured REST API password and then make arbitrary REST API calls. The REST API is bound to localhost by default, limiting the ability for attackers to exploit this, but can optionally be made to listen on other interfaces.

In GNU Mailman before 2.1.38, a list member or moderator can get a CSRF token and craft an admin request (using

CVE-2021-44227 8.8 - High - December 02, 2021

In GNU Mailman before 2.1.38, a list member or moderator can get a CSRF token and craft an admin request (using that token) to set a new admin password or make other changes.

Session Riding

In GNU Mailman before 2.1.36, a crafted URL to the Cgi/options.py user options page

CVE-2021-43331 6.1 - Medium - November 12, 2021

In GNU Mailman before 2.1.36, a crafted URL to the Cgi/options.py user options page can execute arbitrary JavaScript for XSS.

XSS

In GNU Mailman before 2.1.36, the CSRF token for the Cgi/admindb.py admindb page contains an encrypted version of the list admin password

CVE-2021-43332 6.5 - Medium - November 12, 2021

In GNU Mailman before 2.1.36, the CSRF token for the Cgi/admindb.py admindb page contains an encrypted version of the list admin password. This could potentially be cracked by a moderator via an offline brute-force attack.

Insufficiently Protected Credentials

GNU Mailman before 2.1.35 may allow remote Privilege Escalation

CVE-2021-42096 4.3 - Medium - October 21, 2021

GNU Mailman before 2.1.35 may allow remote Privilege Escalation. A certain csrf_token value is derived from the admin password, and may be useful in conducting a brute-force attack against that password.

Improper Restriction of Excessive Authentication Attempts

GNU Mailman before 2.1.35 may allow remote Privilege Escalation

CVE-2021-42097 8 - High - October 21, 2021

GNU Mailman before 2.1.35 may allow remote Privilege Escalation. A csrf_token value is not specific to a single user account. An attacker can obtain a value within the context of an unprivileged user account, and then use that value in a CSRF attack against an admin (e.g., for account takeover).

Session Riding

GNU Mailman before 2.1.33

CVE-2020-15011 4.3 - Medium - June 24, 2020

GNU Mailman before 2.1.33 allows arbitrary content injection via the Cgi/private.py private archive login page.

Injection

/options/mailman in GNU Mailman before 2.1.31

CVE-2020-12108 6.5 - Medium - May 06, 2020

/options/mailman in GNU Mailman before 2.1.31 allows Arbitrary Content Injection.

Injection

GNU Mailman 2.x before 2.1.30 uses the .obj extension for scrubbed application/octet-stream MIME parts

CVE-2020-12137 6.1 - Medium - April 24, 2020

GNU Mailman 2.x before 2.1.30 uses the .obj extension for scrubbed application/octet-stream MIME parts. This behavior may contribute to XSS attacks against list-archive visitors, because an HTTP reply from an archive web server may lack a MIME type, and a web browser may perform MIME sniffing, conclude that the MIME type should have been text/html, and execute JavaScript code.

XSS

Cross-site scripting vulnerability in Mailman 2.1.26 and earlier

CVE-2018-0618 5.4 - Medium - July 26, 2018

Cross-site scripting vulnerability in Mailman 2.1.26 and earlier allows remote authenticated attackers to inject arbitrary web script or HTML via unspecified vectors.

XSS

An issue was discovered in GNU Mailman before 2.1.28

CVE-2018-13796 6.5 - Medium - July 12, 2018

An issue was discovered in GNU Mailman before 2.1.28. A crafted URL can cause arbitrary text to be displayed on a web page from a trusted site.

Improper Input Validation

Cross-site scripting (XSS) vulnerability in the web UI in Mailman before 2.1.26

CVE-2018-5950 6.1 - Medium - January 23, 2018

Cross-site scripting (XSS) vulnerability in the web UI in Mailman before 2.1.26 allows remote attackers to inject arbitrary web script or HTML via a user-options URL.

XSS

Cross-site scripting (XSS) vulnerability in mmsearch/design in the Mailman/htdig integration patch for Mailman

CVE-2011-5024 - December 29, 2011

Cross-site scripting (XSS) vulnerability in mmsearch/design in the Mailman/htdig integration patch for Mailman allows remote attackers to inject arbitrary web script or HTML via the config parameter.

XSS

Multiple cross-site scripting (XSS) vulnerabilities in Cgi/confirm.py in GNU Mailman 2.1.14 and earlier

CVE-2011-0707 - February 22, 2011

Multiple cross-site scripting (XSS) vulnerabilities in Cgi/confirm.py in GNU Mailman 2.1.14 and earlier allow remote attackers to inject arbitrary web script or HTML via the (1) full name or (2) username field in a confirmation message.

XSS

Multiple cross-site scripting (XSS) vulnerabilities in GNU Mailman before 2.1.14rc1

CVE-2010-3089 - September 15, 2010

Multiple cross-site scripting (XSS) vulnerabilities in GNU Mailman before 2.1.14rc1 allow remote authenticated users to inject arbitrary web script or HTML via vectors involving (1) the list information field or (2) the list description field.

XSS

Format string vulnerability in Mailman before 2.1.9 allows attackers to execute arbitrary code via unspecified vectors

CVE-2006-2191 - September 19, 2006

Format string vulnerability in Mailman before 2.1.9 allows attackers to execute arbitrary code via unspecified vectors. NOTE: the vendor has disputed this vulnerability, stating that it is "unexploitable.