Description
Cross-site scripting (XSS) vulnerability in MediaWiki before 1.19.19, 1.22.x before 1.22.11, and 1.23.x before 1.23.4 allows remote attackers to inject arbitrary web script or HTML via a crafted SVG file.
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 | 1:1.19.19+dfsg-1 | — |
| Debian 13 | mediawiki | 1:1.19.19+dfsg-1 | — |
| Debian 12 | mediawiki | 1:1.19.19+dfsg-1 | — |
| Debian 7 | mediawiki | 1:1.19.19+dfsg-0+deb7u1 | DSA-3036-1 |
Advisories 1
- DSA-3036-1 mediawiki - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://gerrit.wikimedia.org/r/#/c/162777/
- DSA-3036 vendor-advisory
- [MediaWiki-announce] 20140924 MediaWiki Security and Maintenance Releases: 1.19.19, 1.22.11 and 1.23.4 mailing-list
- [oss-security] 20140927 Re: CVE request: Mediawiki before 1.19.19, 1.22.11 and 1.23.4 insufficient CSS filtering of SVGs mailing-list
- 61666 third-party-advisory
- https://bugzilla.wikimedia.org/show_bug.cgi?id=69008