ag10.txt

`Advanced Guestbook v1.0  
  
Homepage:  
http://www.sport-slo.net/  
  
Affected files:  
guestbook.php  
  
-----------------------------------------------  
  
XSS vuln on guestbook.php:  
  
Data isn't sanatized before being submit to guestbook.txt and displayed onscreen. The code:  
  
if($_POST['action'])  
{  
if($_POST['name'] && $_POST['form'])  
{  
$action = $_POST['name'] . "@" . $_POST['form'] . "@" . $ip . "@" . $date . "\n";  
  
$handler = fopen("guestbook.txt", "a");  
fputs($handler, $action);  
fclose($handler);  
  
print "Thank you!";  
  
For a PoC as your name or opinion put:  
<script>alert('xss')</script>  
  
It should also be noted that this script comes with the dir /guestbook/and inside that is the cjGuestbook v1.2. v1.3 (which is a newer version) of cj'sguestbook has XSS vulns which i've submitted before.   
`