Summary
Thorsten Glaser discovered that the RSSReader extension for MediaWiki, a website engine for collaborative work, does not properly escape tags in feeds. This could allow a malicious feed to inject JavaScript into the MediaWiki pages.
Solution
For the stable distribution (squeeze), this problem has been fixed in version 2.3squeeze2.
For the testing distribution (wheezy), this problem will be fixed soon.
For the unstable distribution (sid), this problem has been fixed in version 2.11.
We recommend that you upgrade your mediawiki-extensions packages.
Insight
This metapackage provides all the extensions for mediawiki available in Debian.
Affected
mediawiki-extensions on Debian Linux
Detection
This check tests the installed software version using the apt package manager.
References
Updated on 2015-03-25