Reflected Cross-Site Scripting (XSS) in MaxButtons WordPress Plugin

Advisory ID: HTB23237
Product: MaxButtons WordPress plugin
Vendor: Max Foundry
Vulnerable Version(s): 1.26.0 and probably prior
Tested Version: 1.26.0
Advisory Publication:  September 24, 2014  [without technical details]
Vendor Notification: September 24, 2014
Vendor Patch: October 2, 2014
Public Disclosure: October 15, 2014
Vulnerability Type: Cross-Site Scripting [CWE-79]
CVE Reference: CVE-2014-7181
Risk Level: Low
CVSSv2 Base Score: 2.6 (AV:N/AC:H/Au:N/C:N/I:P/A:N)
Solution Status: Fixed by Vendor
Discovered and Provided: High-Tech Bridge Security Research Lab (https://www.htbridge.com/advisory/ )

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Advisory Details:

High-Tech Bridge Security Research Lab discovered vulnerability in MaxButtons WordPress plugin, which can be exploited to perform Cross-Site Scripting (XSS) attacks against logged-in  administrator.


1) Reflected Cross-Site Scripting (XSS) in MaxButtons wordpress plugin: CVE-2014-7181

Input passed via the "id" HTTP GET parameter to "/wp-admin/admin.php" script is not properly sanitised before being returned to the user. 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:

http://wordpress/wp-admin/admin.php?page=maxbuttons-controller&action=button&id=%27%22%3E%3Cscript%3Ealert%28/immuniweb/%29;%3C/script%3E


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Solution:

Update to MaxButtons 1.26.1

More Information:
https://wordpress.org/plugins/maxbuttons/changelog/

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References:

[1] High-Tech Bridge Advisory HTB23237 - https://www.htbridge.com/advisory/HTB23237 - Reflected Cross-Site Scripting (XSS) in MaxButtons WordPress Plugin.
[2] MaxButtons WordPress plugin - http://maxfoundry.com/ - The best WordPress button generator.
[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® SaaS - https://www.htbridge.com/immuniweb/ - hybrid of manual web application penetration test and cutting-edge vulnerability scanner available online via a Software-as-a-Service (SaaS) model.

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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.