Citizen allows stored XSS in menu heading message
Priority MEDIUM 62CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79.
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00409 35th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed mediawiki-skins-Citizen (StarCitizenTools): 93c36ac, 3.3.1starcitizentools/citizen-skin (Packagist): 3.3.1
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| StarCitizenTools | mediawiki-skins-Citizen | 54c8717 to before 93c36ac; 2.4.2 to before 3.3.1 | 93c36ac, 3.3.1 | Patch available | CNA |
| — | starcitizentools/citizen-skin (Packagist) | 2.4.2 to before 3.3.1 | 3.3.1 | Patch available | GHSA-g3cp-pq72-hjpv |
- mediawiki-skins-Citizen VendorStarCitizenTools Affected 54c8717 to before 93c36ac; 2.4.2 to before 3.3.1 Fixed in 93c36ac, 3.3.1 Patch available CNA
- starcitizentools/citizen-skin (Packagist) Vendor— Affected 2.4.2 to before 3.3.1 Fixed in 3.3.1 Patch available GHSA-g3cp-pq72-hjpv
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:starcitizen.tools:citizen:*:*:*:*:*:mediawiki:*:* | before 3.3.1 | Vulnerable | StarCitizenTools |
- cpe:2.3:a:starcitizen.tools:citizen:*:*:*:*:*:mediawiki:*:* Versions before 3.3.1 Vulnerable ·StarCitizenTools
Remediation
- Fix · CNA mediawiki-skins-Citizen (StarCitizenTools) Fixed in 93c36ac, 3.3.1
- Fix · GHSA-g3cp-pq72-hjpv starcitizentools/citizen-skin (Packagist) Fixed in 3.3.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2025-49579
- 2026-10-03 Alias added: GHSA-g3cp-pq72-hjpv
References
Exploit 1
Patch 2
More StarCitizenTools Citizen vulnerabilities
- TI-2025-33330 Citizen is vulnerable to stored XSS attack in the legacy search bar CVSS 3.1HIGH 8.6
- TI-2025-33332 Citizen stored XSS vulnerability through short descriptions CVSS 3.1HIGH 8.6
- TI-2024-23953 Citizen has a Stored Cross-Site Scripting Vulnerability by editing MediaWiki:Tagline CVSS 3.1MEDIUM 6.5
- TI-2025-31591 Citizen allows stored XSS in user registration date message CVSS 3.1MEDIUM 6.5
- TI-2025-31590 Citizen allows stored XSS in preference menu headings CVSS 3.1MEDIUM 6.5
- TI-2025-31589 Citizen allows stored XSS in search no result messages CVSS 3.1MEDIUM 6.5
Sources
- CVE-2025-49579 · CVE Program
- CVE-2025-49579 · NVD
- FIRST EPSS
- GHSA-g3cp-pq72-hjpv · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences