MediaWiki Citizen <3.3.1: Menu.mustache HTML Injection
CVE-2025-49579 Published on June 12, 2025
Citizen allows stored XSS in menu heading message
Citizen is a MediaWiki skin that makes extensions part of the cohesive experience. All system messages in menu headings using the Menu.mustache template are inserted as raw HTML, allowing anybody who can edit those messages to insert arbitrary HTML into the DOM. This impacts wikis where a group has the `editinterface` but not the `editsitejs` user right. This vulnerability is fixed in 3.3.1.
Vulnerability Analysis
CVE-2025-49579 can be exploited with network access, and requires user privileges. This vulnerability is considered to have a low attack complexity. Public availability of a proof of concept (POC) exploit exists for CVE-2025-49579. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality and integrity, and no impact on availability.
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-2025-49579 has been classified to as a XSS vulnerability or weakness.
Products Associated with CVE-2025-49579
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Affected Versions
StarCitizenTools mediawiki-skins-Citizen:- Version >= 54c8717d45ce1594918f11cb9ce5d0ccd8dfee65, < 93c36ac778397e0e7c46cf7adb1e5d848265f1bd is affected.
- Version >= 2.4.2, < 3.3.1 is affected.
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.