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Vulnerability · Published Jun 12, 2025 · Assigned by GitHub_M

CVE-2025-49579Citizen allows stored XSS in menu heading message

Medium 6.5

In plain English

A medium-severity cross-site scripting in mediawiki-skins-Citizen from StarCitizenTools. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.4%top 64.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Packagiststarcitizentools/citizen-skin3.3.1GHSA-g3cp-pq72-hjpv

Affected products (as reported)

VendorProductVersions
StarCitizenTools mediawiki-skins-Citizen >= 54c8717d45ce1594918f11cb9ce5d0ccd8dfee65, < 93c36ac778397e0e7c46cf7adb1e5d848265f1bd>= 2.4.2, < 3.3.1

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

References