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NXFilter v3.0.3 Persistent / Reflected XSS

[+] Credits: hyp3rlinx

[+] Website: hyp3rlinx.altervista.org

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


NXFilter v3.0.3

Vulnerability Type:
Persistent & Reflected XSS

CVE Reference:

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.

<input type="text" name="description" value="<script>alert(666)</script>" size="50">

2) reflected XSS


3) reflected XSS


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

Exploitation Technique:

Severity Level:

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