Secunia Security Advisory – A vulnerability has been discovered in Winn 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/84250/sa37963.txt
Source: https://packetstormsecurity.com/files/84250/Secunia-Security-Advisory-37963.html