Cross-site scripting (XSS) vulnerability in jgb.php3 in Justice Guestbook 1.3 allows remote attackers to inject arbitrary web script or HTML via the (1) name, (2) homepage, (3) aim, (4) yim, (5) location, and (6) comment variables.
http://www.securitytracker.com/id?1006412
http://www.securityfocus.com/bid/7233
http://www.securityfocus.com/archive/1/316745/30/25280/threaded