Gentoo Linux Security Advisory GLSA 200506-12 – MediaWiki incorrectly handles page template inclusions, rendering it vulnerable to cross-site scripting attacks. Versions less than 1.4.5 are affected.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/38167/glsa-200506-12.txt
Source: https://packetstormsecurity.com/files/38167/Gentoo-Linux-Security-Advisory-200506-12.html