starcitizentools/citizen-skin allows stored XSS in menu heading message
Summary
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.
Details
The system messages for menu headings are inserted unescaped into raw HTML: https://github.com/StarCitizenTools/mediawiki-skins-Citizen/blob/072e4365e9084e4b153eac62d3666566c06f5a49/templates/Menu.mustache#L8-L10
PoC
- Go to any article using citizen with the
uselangparameter set tox-xss - A large number of alerts will be shown for various messages, e.g.:
On the main page of my test wiki, the following messages were shown: navigation, notifications, user-interface-preferences, personaltools, variants, views, associated-pages, cactions and toolbox.
Impact
This impacts wikis where a group has the editinterface but not the editsitejs user right.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | starcitizentools/citizen-skin | >= 2.4.2, < 3.3.1 | 3.3.1 |
References
- https://github.com/StarCitizenTools/mediawiki-skins-Citizen/security/advisories/GHSA-g3cp-pq72-hjpv
- https://nvd.nist.gov/vuln/detail/CVE-2025-49579
- https://github.com/StarCitizenTools/mediawiki-skins-Citizen/commit/54c8717d45ce1594918f11cb9ce5d0ccd8dfee65
- https://github.com/StarCitizenTools/mediawiki-skins-Citizen/commit/93c36ac778397e0e7c46cf7adb1e5d848265f1bd
- https://github.com/StarCitizenTools/mediawiki-skins-Citizen
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N- Weakness (CWE)
CWE-79- Platform
- Composer
- Package
starcitizentools/citizen-skin- Disclosed
- 13.06.2025
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-g3cp-pq72-hjpv - CC BY 4.0
Vulnerability history: starcitizentools/citizen-skin
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 9
- First → latest
- 09.2024 10.2025
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 2
- Medium 7
Disclosures per year
- 2024: 1
- 2025: 8
- 2026: 0
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starcitizentools/citizen-skin allows stored XSS in menu heading message this entry
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