Description
Cross-site scripting (XSS) vulnerability in the outputPage function in includes/SkinTemplate.php in MediaWiki before 1.17.5, 1.18.x before 1.18.4, and 1.19.x before 1.19.1 allows remote attackers to inject arbitrary web script or HTML via the uselang parameter to index.php/Main_page.
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 | 1:1.19.1-1 | — |
| Debian 13 | mediawiki | 1:1.19.1-1 | — |
| Debian 12 | mediawiki | 1:1.19.1-1 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Exploit-DB 1
- MediaWiki 1.x - 'uselang' Cross-Site Scripting EDB-37404 · webapps · Jun 17, 2012 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- [MediaWiki-announce] 20120613 MediaWiki security release 1.17.5 mailing-list
- https://www.mediawiki.org/wiki/Release_notes/1.18
- 82983 vdb-entry
- [MediaWiki-announce] 20120613 MediaWiki security release 1.18.4 mailing-list
- 49484 third-party-advisory
- https://bugzilla.wikimedia.org/show_bug.cgi?id=36938
- 1027179 vdb-entry
- https://www.mediawiki.org/wiki/Release_notes/1.19
- mediawiki-index-uselang-xss(76311) vdb-entry
- https://www.mediawiki.org/wiki/Release_notes/1.17
- https://gerrit.wikimedia.org/r/#/c/7979/1/includes/SkinTemplate.php
- [oss-security] 20120613 Re: CVE request: XSS in uselang http parameter (mediawiki) mailing-list
- [MediaWiki-announce] 20120613 MediaWiki security release 1.19.1 mailing-list