Secunia Security Advisory – Gentoo has issued an update for MediaWiki. This fixes a vulnerability, which can be exploited by malicious people to conduct cross-site scripting attacks.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/37988/sa15691.txt
Source: https://packetstormsecurity.com/files/37988/Secunia-Security-Advisory-15691.html