Secunia Security Advisory – Gentoo has issued updates for tikiwiki / egroupware. These fix a vulnerability, which can be exploited by malicious people to compromise a vulnerable system.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/39600/sa16573.txt
Source: https://packetstormsecurity.com/files/39600/Secunia-Security-Advisory-16573.html

