Citizen stored XSS vulnerability through short descriptions
Priority HIGH 70CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- High · Low · Low
- 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. From versions 1.9.4 to before 3.4.0, short descriptions set via the ShortDescription extension are inserted as raw HTML by the Citizen skin, allowing any user to insert arbitrary HTML into the DOM by editing a page. This issue has been patched in version 3.4.0.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00386 32nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed mediawiki-skins-Citizen (StarCitizenTools): 3.4.0starcitizentools/citizen-skin (Packagist): 3.4.0
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 | >= 65a7ffd927467c8c3557146d1ac6de62b0369b6c, < c85a40bddc8651fff66df83a72debddcb34f0521; 1.9.4 to before 3.4.0 | 3.4.0 | Patch available | CNA |
| — | starcitizentools/citizen-skin (Packagist) | 1.9.4 to before 3.4.0 | 3.4.0 | Patch available | GHSA-prmv-7r8c-794g |
- mediawiki-skins-Citizen VendorStarCitizenTools Affected >= 65a7ffd927467c8c3557146d1ac6de62b0369b6c, < c85a40bddc8651fff66df83a72debddcb34f0521; 1.9.4 to before 3.4.0 Fixed in 3.4.0 Patch available CNA
- starcitizentools/citizen-skin (Packagist) Vendor— Affected 1.9.4 to before 3.4.0 Fixed in 3.4.0 Patch available GHSA-prmv-7r8c-794g
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:starcitizen.tools:citizen:*:*:*:*:*:mediawiki:*:* | 1.9.4 to before 3.4.0 | Vulnerable | StarCitizenTools |
- cpe:2.3:a:starcitizen.tools:citizen:*:*:*:*:*:mediawiki:*:* Versions 1.9.4 to before 3.4.0 Vulnerable ·StarCitizenTools
Remediation
- Fix · CNA mediawiki-skins-Citizen (StarCitizenTools) Fixed in 3.4.0
- Fix · GHSA-prmv-7r8c-794g starcitizentools/citizen-skin (Packagist) Fixed in 3.4.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2025-53370
- 2026-10-03 Alias added: GHSA-prmv-7r8c-794g
References
Exploit 1
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-2024-23953 Citizen has a Stored Cross-Site Scripting Vulnerability by editing MediaWiki:Tagline CVSS 3.1MEDIUM 6.5
- TI-2025-31592 Citizen allows stored XSS in menu heading message 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-2025-53370 · CVE Program
- CVE-2025-53370 · NVD
- FIRST EPSS
- GHSA-prmv-7r8c-794g · 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