MegaBook V2.0 - Cross Site Scripting Exploit

The ultimate CGI Guestbook Scripts MegaBook V2.0 appears vulnerable to Cross Site Scripting, which will allow the attacker to modify the post in the guestbook. The affected scripts is admin.cgi URL: http://www.yourdomain.com/yourcgidir/admin.cgi I have tested the script with the following query:...