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Сross-Site Request Forgery (CSRF) in AskApach e Firefox Adsense Wordpress plugin
From: High-Tech Bridge Security Research <advisory () htbridge com>
Date: Thu, 26 Dec 2013 12:09:13 +0100 (CET)

Advisory ID: HTB23188
Product: AskApache Firefox Adsense Wordpress plugin
Vendor: AskApache
Vulnerable Version(s): 3.0 and probably prior
Tested Version: 3.0
Advisory Publication:  December 5, 2013  [without technical details]
Vendor Notification: December 5, 2013 
Public Disclosure: December 26, 2013 
Vulnerability Type: Cross-Site Request Forgery [CWE-352]
CVE Reference: CVE-2013-6992
Risk Level: Low 
CVSSv2 Base Score: 2.6 (AV:N/AC:H/Au:N/C:N/I:P/A:N)
Solution Status: Not Fixed
Discovered and Provided: High-Tech Bridge Security Research Lab ( https://www.htbridge.com/advisory/ ) 


Advisory Details:

High-Tech Bridge Security Research Lab discovered vulnerability in AskApache Firefox Adsense Wordpress plugin, which 
can be exploited to perform Сross-Site Request Forgery (CSRF) attacks.

1) Сross-Site Request Forgery (CSRF) in AskApache Firefox Adsense Wordpress plugin: CVE-2013-6992

The vulnerability exists due to insufficient verification of the HTTP request origin in "/wp-admin/options-general.php" 
script. A remote attacker can trick a logged-in administrator to visit a specially crafted page with CSRF exploit, 
inject and execute arbitrary HTML and script code in administrator’s browser in context of vulnerable website. 

The exploitation example below injects JavaScript code, which uses the "alert()" function to display "immuniweb" word:

<form action="http://[host]/wp-admin/options-general.php?page=askapache-firefox-adsense.php"; method="post" name="main">
<input type="hidden" name="aafireadcode"  value='<script>alert("immuniweb");</script>'>
<input type="submit" id="btn">



Disable the vulnerable plugin. 

On 2013-12-06 vendor replied to our notification that he will not support the plugin anymore, and proposed to remove 
the vulnerable plugin as the official solution. The vendor has also taken steps to remove this plugin from 



[1] High-Tech Bridge Advisory HTB23188 - https://www.htbridge.com/advisory/HTB23188 - Сross-Site Request Forgery (CSRF) 
in AskApache Firefox Adsense Wordpress plugin.
[2] AskApache Firefox Adsense Wordpress plugin - http://wordpress.org/plugins/askapache-firefox-adsense/ - Displays a 
Google Adsense Ad for Firefox only for non-firefox users.
[3] Common Vulnerabilities and Exposures (CVE) - http://cve.mitre.org/ - international in scope and free for public 
use, CVE® is a dictionary of publicly known information security vulnerabilities and exposures.
[4] Common Weakness Enumeration (CWE) - http://cwe.mitre.org - targeted to developers and security practitioners, CWE 
is a formal list of software weakness types.
[5] ImmuniWeb® - http://www.htbridge.com/immuniweb/ - is High-Tech Bridge's proprietary web application security 
assessment solution with SaaS delivery model that combines manual and automated vulnerability testing.


Disclaimer: The information provided in this Advisory is provided "as is" and without any warranty of any kind. Details 
of this Advisory may be updated in order to provide as accurate information as possible. The latest version of the 
Advisory is available on web page [1] in the References.

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