Secunia Security Advisory – Some vulnerabilities have been discovered in H2O-CMS, which can be exploited by malicious people to bypass certain security restrictions or by malicious users to compromise a vulnerable system.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/71328/sa32433.txt
Source: https://packetstormsecurity.com/files/71328/Secunia-Security-Advisory-32433.html