Secunia Security Advisory – Wouter Coekaerts has reported a vulnerability in a2x, which can be exploited by malicious people to bypass certain security restrictions.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/58609/sa26487.txt
Source: https://packetstormsecurity.com/files/58609/Secunia-Security-Advisory-26487.html