XSS in Starcitizentools Mediawiki-Extensions-Tabberneue
CVE-2025-53093
TabberNeue is a MediaWiki extension that allows the wiki to create tabs. Starting in version 3.0.0 and prior to version 3.1.1, any user can insert arbitrary HTMLinto the DOM by inserting a payload into any allowed attribute of the `<tabber>` tag. Version 3.1.1 contains a patch for the bug.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.004 (28.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L.
Affected products
- Starcitizentools Mediawiki-extensions-tabberneue — versions >= 3.0.0, < 3.1.1
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-53093?
- CVE-2025-53093 is a high-severity vulnerability in Starcitizentools Mediawiki-Extensions-Tabberneue, classified under Cross-site Scripting. CVSS score: 8.6/10. Published 2025-06-27.
- How severe is CVE-2025-53093?
- High severity. CVSS v3 base score is 8.6 out of 10.