Secunia Security Advisory – Debian has issued an update for php4. This fixes some vulnerabilities, which can be exploited by malicious people to conduct cross-site scripting attacks, cause a DoS (Denial of Service), and potentially compromise a vulnerable system.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/57538/sa25945.txt
Source: https://packetstormsecurity.com/files/57538/Secunia-Security-Advisory-25945.html