Next Generation advisory NGSEC-2003-5. YABBS, the popular BBS system for unix and Windows, has a vulnerability in the HttPush code that allows a remote attacker to inject evil code via its PHP language support.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/31050/yabbs01.txt
Source: https://packetstormsecurity.com/files/31050/yabbs01.txt.html