Cross-site Scripting in TabberTransclude in Extension:TabberNeue
Priority HIGH 72CWE-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
TabberNeue is a MediaWiki extension that allows the wiki to create tabs. Prior to 2.7.2, TabberTransclude.php doesn't escape the user-supplied page name when outputting, so an XSS payload as the page name can be used here. This vulnerability is fixed in 2.7.2.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00504 43rd percentileScored 2026-11-07
Fix Fixed mediawiki-extensions-TabberNeue (StarCitizenTools): 2.7.2starcitizentools/tabber-neue (Packagist): 2.7.2
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
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-TabberNeue | 1.9.1 to before 2.7.2; >= d8c3db4, < f229cab | 2.7.2 | Patch available | CNA |
| — | starcitizentools/tabber-neue (Packagist) | 1.9.1 to before 2.7.2 | 2.7.2 | Patch available | GHSA-4x6x-8rm8-c37j |
- mediawiki-extensions-TabberNeue VendorStarCitizenTools Affected 1.9.1 to before 2.7.2; >= d8c3db4, < f229cab Fixed in 2.7.2 Patch available CNA
- starcitizentools/tabber-neue (Packagist) Vendor— Affected 1.9.1 to before 2.7.2 Fixed in 2.7.2 Patch available GHSA-4x6x-8rm8-c37j
Remediation
- Fix · CNA mediawiki-extensions-TabberNeue (StarCitizenTools) Fixed in 2.7.2
- Fix · GHSA-4x6x-8rm8-c37j starcitizentools/tabber-neue (Packagist) Fixed in 2.7.2 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2025-21612
- 2026-10-03 Alias added: GHSA-4x6x-8rm8-c37j
References
Other 4
- https://github.com/StarCitizenTools/mediawiki-extensions-TabberNeue/security/advisories/GHSA-4x6x-8rm8-c37j
- https://github.com/StarCitizenTools/mediawiki-extensions-TabberNeue/commit/d8c3db4e5935476e496d979fb01f775d3d3282e6
- https://github.com/StarCitizenTools/mediawiki-extensions-TabberNeue/commit/f229cab099c69006e25d4bad3579954e481dc566
- https://github.com/StarCitizenTools/mediawiki-extensions-TabberNeue
More StarCitizenTools vulnerabilities
- TI-2025-33331 Citizen Short Description stored XSS vulnerability through wikitext CVSS 3.1HIGH 8.6
- 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-2025-33332 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-2025-21612 · CVE Program
- CVE-2025-21612 · NVD
- FIRST EPSS
- GHSA-4x6x-8rm8-c37j · 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