Citizen skin vulnerable to stored XSS through multiple system messages
Summary
Multiple system messages are inserted into the CommandPaletteFooter as raw HTML, allowing anybody who can edit those messages to insert arbitrary HTML into the DOM.
Details
The messages are retrieved using the plain() output mode: https://github.com/StarCitizenTools/mediawiki-skins-Citizen/blob/072e4365e9084e4b153eac62d3666566c06f5a49/resources/skins.citizen.commandPalette/components/CommandPaletteFooter.vue#L61-L66
currentTip is set to one of these messages: https://github.com/StarCitizenTools/mediawiki-skins-Citizen/blob/072e4365e9084e4b153eac62d3666566c06f5a49/resources/skins.citizen.commandPalette/components/CommandPaletteFooter.vue#L69
currentTip is inserted as raw HTML (vue/no-v-html should not be ignored here): https://github.com/StarCitizenTools/mediawiki-skins-Citizen/blob/072e4365e9084e4b153eac62d3666566c06f5a49/resources/skins.citizen.commandPalette/components/CommandPaletteFooter.vue#L3-L4
PoC
- Edit
citizen-command-palette-tip-commands,citizen-command-palette-tip-users,citizen-command-palette-tip-namespaceandcitizen-command-palette-tip-templatesto<img src="" onerror="alert(1)">(script tags don't work here due to the way the HTML is inserted) - Open the command palette
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-4c2h-67qq-vm87
- https://nvd.nist.gov/vuln/detail/CVE-2025-49575
- https://github.com/StarCitizenTools/mediawiki-skins-Citizen/commit/4fa69e1d062dca7e407cc0530cf1da3e2baaf0b5
- 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
- 11.06.2025
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-4c2h-67qq-vm87 - 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
-
Citizen skin vulnerable to stored XSS through multiple system messages this entry
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