Description
Cross-site scripting (XSS) vulnerability in MediaWiki before 1.23.12, 1.24.x before 1.24.5, 1.25.x before 1.25.4, and 1.26.x before 1.26.1, when is configured with a relative URL, allows remote authenticated users to inject arbitrary web script or HTML via wikitext, as demonstrated by a wikilink to a page named "javascript:alert('XSS!')."
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 | 1:1.25.5-1 | — |
| Debian 13 | mediawiki | 1:1.25.5-1 | — |
| Debian 12 | mediawiki | 1:1.25.5-1 | — |
References
- [MediaWiki-announce] 20151221 [MediaWiki-announce] Security Release: 1.26.1, 1.25.4, 1.24.5 and 1.23.12 mailing-list
- [oss-security] 20151223 Re: CVE requests for MediaWiki 1.26.1, 1.25.4, 1.24.5 and 1.23.12 mailing-list
- https://phabricator.wikimedia.org/T117899
- [oss-security] 20151221 CVE requests for MediaWiki 1.26.1, 1.25.4, 1.24.5 and 1.23.12 mailing-list