Secunia Security Advisory – rgod has reported a vulnerability in PHP4, 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/55002/sa24440.txt
Source: https://packetstormsecurity.com/files/55002/Secunia-Security-Advisory-24440.html

