Debian Security Advisory DSA 2957-1 (mediawiki - security update)

Summary
Omer Iqbal discovered that Mediawiki, a wiki engine, parses invalid usernames on Special:PasswordReset as wikitext when $wgRawHtml is enabled. On such wikis this allows an unauthenticated attacker to insert malicious JavaScript, a cross site scripting attack.
Solution
For the stable distribution (wheezy), this problem has been fixed in version 1:1.19.16+dfsg-0+deb7u1. For the unstable distribution (sid), this problem has been fixed in version 1:1.19.16+dfsg-1. We recommend that you upgrade your mediawiki packages.
Insight
MediaWiki is a wiki engine (a program for creating a collaboratively edited website). It is designed to handle heavy websites containing library-like document collections, and supports user uploads of images/sounds, multilingual content, TOC autogeneration, ISBN links, etc.
Affected
mediawiki on Debian Linux
Detection
This check tests the installed software version using the apt package manager.
References