Citizen Short Description stored XSS vulnerability through wikitext
Priority HIGH 76CWE-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
Short Description is a MediaWiki extension that provides local short description support. In version 4.0.0, short descriptions are not properly sanitized before being inserted as HTML using mw.util.addSubtitle, allowing any user to insert arbitrary HTML into the DOM by editing a page. This issue has been patched in version 4.0.1.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00341 27th percentileScored 2026-11-07
Fix Fixed mediawiki-extensions-ShortDescription (StarCitizenTools): 2c18bd21c5de53c336f55b6ff42f2983ea5796b4, 4.0.1starcitizentools/short-description (Packagist): 4.0.1
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- 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-extensions-ShortDescription | 05f6c6824f8f37dcc2d51cf6df4e7a09bea2196c to before 2c18bd21c5de53c336f55b6ff42f2983ea5796b4; 4.0.0 to before 4.0.1 | 2c18bd21c5de53c336f55b6ff42f2983ea5796b4, 4.0.1 | Patch available | CNA |
| — | starcitizentools/short-description (Packagist) | 4.0.0 to before 4.0.1 | 4.0.1 | Patch available | GHSA-p85q-mww9-gwqf |
- mediawiki-extensions-ShortDescription VendorStarCitizenTools Affected 05f6c6824f8f37dcc2d51cf6df4e7a09bea2196c to before 2c18bd21c5de53c336f55b6ff42f2983ea5796b4; 4.0.0 to before 4.0.1 Fixed in 2c18bd21c5de53c336f55b6ff42f2983ea5796b4, 4.0.1 Patch available CNA
- starcitizentools/short-description (Packagist) Vendor— Affected 4.0.0 to before 4.0.1 Fixed in 4.0.1 Patch available GHSA-p85q-mww9-gwqf
Remediation
- Fix · CNA mediawiki-extensions-ShortDescription (StarCitizenTools) Fixed in 2c18bd21c5de53c336f55b6ff42f2983ea5796b4, 4.0.1
- Fix · GHSA-p85q-mww9-gwqf starcitizentools/short-description (Packagist) Fixed in 4.0.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2025-53369
- 2026-10-03 Alias added: GHSA-p85q-mww9-gwqf
References
Other 3
- https://github.com/StarCitizenTools/mediawiki-extensions-ShortDescription/security/advisories/GHSA-p85q-mww9-gwqf
- https://github.com/StarCitizenTools/mediawiki-extensions-ShortDescription/commit/bc4fdbaeb1dff127fb6d08c0d385b64aa128c8f8
- https://github.com/StarCitizenTools/mediawiki-extensions-ShortDescription
More StarCitizenTools vulnerabilities
- TI-2025-33330 Citizen is vulnerable to stored XSS attack in the legacy search bar CVSS 3.1HIGH 8.6
- TI-2025-33086 TabberNeue vulnerable to Stored XSS through wikitext CVSS 3.1HIGH 8.6
- TI-2025-15572 Cross-site Scripting in TabberTransclude in Extension:TabberNeue 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-2025-38749 Citizen vulnerable to stored XSS in sticky header button messages CVSS 3.1MEDIUM 6.5
Sources
- CVE-2025-53369 · CVE Program
- CVE-2025-53369 · NVD
- FIRST EPSS
- GHSA-p85q-mww9-gwqf · 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