Secunia Security Advisory – Moudi has reported a vulnerability in JNM Guestbook, which can be exploited by malicious people to conduct cross-site scripting attacks.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/79058/sa35760.txt
Source: https://packetstormsecurity.com/files/79058/Secunia-Security-Advisory-35760.html