bugtraq - Stored XSS Vulnerability in ADPlugg Wordpress Plugin

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Date: Sat, 21 Feb 2015 06:52:50 GMT
From: kingkaustubh@...com
To: bugtraq@...urityfocus.com
Subject: Stored XSS Vulnerability in ADPlugg  Wordpress Plugin

=====================================================
Stored XSS Vulnerability in ADPlugg  Wordpress Plugin 
=====================================================

. contents:: Table Of Content

Overview
========

* Title :Stored XSS Vulnerability in ADPlugg Wordpress Plugin 
* Author: Kaustubh G. Padwad
* Plugin Homepage: https://wordpress.org/plugins/adplugg/
* Severity: Medium
* Version Affected: 1.1.33 and mostly prior to it
* Version Tested : 1.1.33
* version patched: 1.1.34

Description 
===========

Vulnerable Parameter  
--------------------

*  Access Code
 	
About Vulnerability
-------------------
This plugin is vulnerable to a Stored cross site scripting vulnerability,This issue was exploited when administrator users with access to AdPlugg Setting in wordpress Access code parameter is vulnerable for stored XSS. A malicious administration can hijack other users session, take control of another administrator's browser or install malware on their computer.

Vulnerability Class
===================     
Cross Site Scripting (https://www.owasp.org/index.php/Top_10_2013-A3-Cross-Site_Scripting_(XSS) 

Steps to Reproduce: (POC)
=========================

After installing the plugin

* Goto settings --> AdPlugg
* Put This payload in Access Code "><script>alert(document.cookie)</script>
* Click on the Save Changes you will see XSS in action 
* Reload the page or re navigate to page to make sure its stored ;)

Mitigation 
==========
Update to Version 1.1.34 

Change Log
==========
https://wordpress.org/plugins/adplugg/changelog/

Disclosure 
==========
18-February-2015 reported to developer
19-February-2015 Developer acknodlage the Bug
19-February-2015 Developer Patched the Bug and Push update
21-February-2015 Public Discloser

credits
=======
* Kaustubh Padwad
* Information Security Researcher
* kingkaustubh@...com
* https://twitter.com/s3curityb3ast
* http://breakthesec.com
* https://www.linkedin.com/in/kaustubhpadwad