Secunia Security Advisory – luny has discovered some vulnerabilities in PBL Guestbook, which can be exploited by malicious people to conduct script insertion attacks.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/47130/sa20526.txt
Source: https://packetstormsecurity.com/files/47130/Secunia-Security-Advisory-20526.html