Description
Cross-site scripting (XSS) vulnerability in thumb.php in MediaWiki before 1.19.23, 1.2x before 1.22.15, 1.23.x before 1.23.8, and 1.24.x before 1.24.1 allows remote authenticated users to inject arbitrary web script or HTML via a wikitext message.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | mediawiki | 1:1.19.20+dfsg-2.2 | — |
| Debian 13 | mediawiki | 1:1.19.20+dfsg-2.2 | — |
| Debian 12 | mediawiki | 1:1.19.20+dfsg-2.2 | — |
| Debian 7 | mediawiki | 1:1.19.20+dfsg-0+deb7u3 | DSA-3110-1 |
Advisories 1
- DSA-3110-1 mediawiki - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- DSA-3110 vendor-advisory
- [oss-security] 20150103 Re: CVE Request: Mediawiki security releases 1.24.1, 1.23.8, 1.22.15 and 1.19.23 mailing-list
- [oss-security] 20141221 CVE Request: Mediawiki security releases 1.24.1, 1.23.8, 1.22.15 and 1.19.23 mailing-list
- MDVSA-2015:006 vendor-advisory
- [MediaWiki-announce] 20141217 MediaWiki Security and Maintenance Releases: 1.24.1, 1.23.8, 1.22.15 and 1.19.23 mailing-list