starcitizentools/citizen-skin allows stored XSS in preference menu heading messages
Summary
Various preferences messages are inserted into raw HTML, allowing anybody who can edit those messages to insert arbitrary HTML into the DOM.
Details
The innerHtml of the label div is set to the textContent of the label, essentially unsanitizing the system messages:
https://github.com/StarCitizenTools/mediawiki-skins-Citizen/blob/407052e7069bdeae927d6f1a2a1c9a45b473bf9a/resources/skins.citizen.preferences/addPortlet.polyfill.js#L18
PoC
- Edit
citizen-feature-custom-font-size-name(or any other message displayed in a heading in the preferences menu) to<img src="" onerror="alert('citizen-feature-custom-font-size-name')">(script tags don't work here due to the way the HTML is inserted) - Open the preferences menu
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | starcitizentools/citizen-skin | >= 2.13.0, < 3.3.1 | 3.3.1 |
References
- https://github.com/StarCitizenTools/mediawiki-skins-Citizen/security/advisories/GHSA-jwr7-992g-68mh
- https://nvd.nist.gov/vuln/detail/CVE-2025-49577
- https://github.com/StarCitizenTools/mediawiki-skins-Citizen/commit/93c36ac778397e0e7c46cf7adb1e5d848265f1bd
- https://github.com/StarCitizenTools/mediawiki-skins-Citizen/commit/a741639085d70c22a9f49890542a142a223bf981
- 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-jwr7-992g-68mh - 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
-
starcitizentools/citizen-skin allows stored XSS in preference menu heading messages this entry
Know which vulnerabilities affect your application
With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.