Gentoo Linux Security Advisory GLSA 200501-12 – A bug in TikiWiki allows certain users to upload and execute malicious PHP scripts.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/35652/glsa-200501-12.txt
Source: https://packetstormsecurity.com/files/35652/Gentoo-Linux-Security-Advisory-200501-12.html