PhpWebFtp Cross Site Scripting Vulnerability

Summary
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phpWebFTP enables connections to FTP servers, even behind a firewall not 
allowing traffic. phpWebFTP bypasses the firewall by making a FTP connection 
from your webserver to the FTP server and transfering the files to your 
webclient over the http protocol

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Issue: PhpWebftp is prone to multiple XSS vulnerability .An attacker may 
leverage this issue to have arbitrary script code executed in the browser of an 
unsuspecting user in the context of the affected site. This may help the 
attacker steal cookie-based authentication credentials and launch other 
attacks.the exploit is tested on PhpWebFtp v2.3.


Proof of Concept 

XSS is possible via malicious arguments passed on the web browser using POST 
Method relative to the path of phpWebftp ie. 
http://www.anysite.com/PhpWebFtp/index.php?

server=1&port=<script>var%20sub_variable=11233;alert(sub_variable);</script>&goPassive=on&user=1&password=1&language=bulgarian

Further XSS Details and Xploits :
http://www.subjectzero.net/research/phpwebftpxss.htm