CVE-2025-49579
starcitizentools/citizen-skin allows stored XSS in menu heading message
Impact
### 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 1. Go to any article using citizen with the `uselang` parameter set to `x-xss` 2. 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 packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| composer | starcitizentools/citizen-skin | >= 2.4.2, < 3.3.1 | 3.3.1 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Starcitizen.Tools | Citizen | before 3.3.1 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- 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/security/advisories/GHSA-g3cp-pq72-hjpv
- https://github.com/advisories/GHSA-g3cp-pq72-hjpv
- https://nvd.nist.gov/vuln/detail/CVE-2025-49579