XWiki Platform XSS via Template Provider (3.1-13.4rc1)
CVE-2023-45134 Published on October 25, 2023
XWiki Platform XSS vulnerability from account in the create page form via template provider
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. `org.xwiki.platform:xwiki-platform-web` starting in version 3.1-milestone-1 and prior to 13.4-rc-1, `org.xwiki.platform:xwiki-platform-web-templates` prior to versions 14.10.2 and 15.5-rc-1, and `org.xwiki.platform:xwiki-web-standard` starting in version 2.4-milestone-2 and prior to version 3.1-milestone-1 are vulnerable to cross-site scripting. An attacker can create a template provider on any document that is part of the wiki (could be the attacker's user profile) that contains malicious code. This code is executed when this template provider is selected during document creation which can be triggered by sending the user to a URL. For the attacker, the only requirement is to have an account as by default the own user profile is editable. This allows an attacker to execute arbitrary actions with the rights of the user opening the malicious link. Depending on the rights of the user, this may allow remote code execution and full read and write access to the whole XWiki installation. This has been patched in `org.xwiki.platform:xwiki-platform-web` 13.4-rc-1, `org.xwiki.platform:xwiki-platform-web-templates` 14.10.2 and 15.5-rc-1, and `org.xwiki.platform:xwiki-web-standard` 3.1-milestone-1 by adding the appropriate escaping. The vulnerable template file createinline.vm is part of XWiki's WAR and can be patched by manually applying the changes from the fix.
Vulnerability Analysis
CVE-2023-45134 is exploitable with network access, requires user interaction and a small amount of user privileges. This vulnerability is considered to have a low attack complexity. Public availability of a proof of concept (POC) exploit exists for CVE-2023-45134. The potential impact of an exploit of this vulnerability is considered to be critical as this vulnerability has a high impact to the confidentiality, integrity and availability of this component.
Weakness Type
What is a XSS Vulnerability?
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
CVE-2023-45134 has been classified to as a XSS vulnerability or weakness.
Products Associated with CVE-2023-45134
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Affected Versions
xwiki-platform:- Version >= 3.1-milestone-1, < 13.4-rc-1 is affected.
- Version >= 2.4-milestone-2, < 3.1-milestone-1 is affected.
- Version >= 14.0-rc-1, < 14.10.12 is affected.
- Version >= 15.0-rc-1, < 15.5-rc-1 is affected.
- Version 3.1-milestone-1 and below 13.4-rc-1 is affected.
- Version 2.4-milestone-2 and below 3.1-milestone-1 is affected.
- Version 14.0-rc-1 and below 14.10.12 is affected.
- Version 15.0-rc-1, and below 15.5-rc-1 is affected.
Vulnerable Packages
The following package name and versions may be associated with CVE-2023-45134
| Package Manager | Vulnerable Package | Versions | Fixed In |
|---|---|---|---|
| maven | org.xwiki.platform:xwiki-platform-web-templates | < 14.10.12 | 14.10.12 |
| maven | org.xwiki.platform:xwiki-platform-web-templates | >= 15.0-rc-1, < 15.5-rc-1 | 15.5-rc-1 |
| maven | org.xwiki.platform:xwiki-web-standard | >= 2.4-milestone-2, < 3.1-milestone-1 | 3.1-milestone-1 |
| maven | org.xwiki.platform:xwiki-platform-web | >= 3.1-milestone-1, < 13.4-rc-1 | 13.4-rc-1 |
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.