Multiple directory traversal vulnerabilities in (1) languages/Language.php and (2) includes/StubObject.php in MediaWiki 1.8.0 and other versions before 1.16.2, when running on Windows and possibly Novell Netware, allow remote attackers to include and execute arbitrary local PHP files via vectors related to a crafted language file and the Language::factory function.
https://bugzilla.wikimedia.org/show_bug.cgi?id=27094
http://www.vupen.com/english/advisories/2011/0273
http://www.openwall.com/lists/oss-security/2011/02/03/3
http://www.openwall.com/lists/oss-security/2011/02/01/4
http://lists.wikimedia.org/pipermail/mediawiki-announce/2011-February/000095.html
http://download.wikimedia.org/mediawiki/1.16/mediawiki-1.16.2.patch.gz