CVE-2025-49579 json
Citizen allows stored XSS in menu heading message
published 2025-06-12 16 mo ago modified 2026-06-17 4 mo ago also GHSA-g3cp-pq72-hjpv , EUVD-2025-18204
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 37%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- packagist starcitizentools/citizen-skin 3.3.1
- starcitizen.tools citizen 3.3.1
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 16 mo ago
Exploit prediction
0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/StarCitizenTools/mediawiki-skins-Citizen/security/advisories/GHSA-g3cp-pq72-hjpv referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N |
| NVD | 3.1 | 4.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
| GitHub | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | starcitizentools/citizen-skin | >=2.4.2, <3.3.1 |
3.3.1 |
Affected products
- StarCitizenTools mediawiki-skins-Citizen
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/StarCitizenTools/mediawiki-skins-Citizen/commit/54c8717d45ce1594918f11cb9ce5d0ccd8dfee65
web, patch
-
github.com
/StarCitizenTools/mediawiki-skins-Citizen/commit/93c36ac778397e0e7c46cf7adb1e5d848265f1bd
web, patch
-
github.com
/StarCitizenTools/mediawiki-skins-Citizen/security/advisories/GHSA-g3cp-pq72-hjpv
web, exploit, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2025-49579
advisory
-
github.com
/StarCitizenTools/mediawiki-skins-Citizen
package
Sources
- CVE List CVE-2025-49579
- GitHub Advisory GHSA-g3cp-pq72-hjpv
- NVD CVE-2025-49579
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