CVE-2025-21612

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.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
8.6 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
GitHub_MCNA
8.6 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
CISA-ADPADP
8.6 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 35%
Common Weakness Enumeration
References
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/security/advisories/GHSA-4x6x-8rm8-c37j