Secunia Security Advisory – Some vulnerabilities and a weakness have been discovered in freePBX, which can be exploited by malicious people to disclose certain system information, and to conduct cross-site scripting and cross-site request forgery attacks.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/77329/sa34772.txt
Source: https://packetstormsecurity.com/files/77329/Secunia-Security-Advisory-34772.html