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WordPress Easy Testimonials 1.36.1 Cross Site Scripting

WordPress Easy Testimonials 1.36.1 Cross Site Scripting
Posted Aug 1, 2016
Authored by Securify B.V., Bente Schopman

WordPress Easy Testimonials plugin version 1.36.1 suffers from a persistent cross site scripting vulnerability.

tags | exploit, xss
MD5 | 6d0534b2384f3cc41f398d05f6bb583a

WordPress Easy Testimonials 1.36.1 Cross Site Scripting

Change Mirror Download
------------------------------------------------------------------------
Stored Cross-Site Scripting vulnerability in Easy Testimonials WordPress
Plugin
------------------------------------------------------------------------
Bente Schopman, July 2016

------------------------------------------------------------------------
Abstract
------------------------------------------------------------------------
Multiple stored Cross-Site Scripting vulnerabilities were found in the
Easy Testimonials WordPress Plugin. These issues can be exploited by an
authenticated Contributor (or higher). It allows an attacker to perform
a wide variety of actions, such as stealing users' session tokens, or
performing arbitrary actions on their behalf.

------------------------------------------------------------------------
OVE ID
------------------------------------------------------------------------
OVE-20160712-0010

------------------------------------------------------------------------
Tested versions
------------------------------------------------------------------------
These issues were successfully tested on Easy Testimonials WordPress
Plugin version 1.36.1.

------------------------------------------------------------------------
Fix
------------------------------------------------------------------------
This issue is resolved in Easy Testimonials WordPress Plugin version
1.37.

------------------------------------------------------------------------
Details
------------------------------------------------------------------------
https://sumofpwn.nl/advisory/2016/stored_cross_site_scripting_vulnerability_in_easy_testimonials_wordpress_plugin.html

This can be exploited by users with a role lower than the Editor (which has the unfiltered_html privileges) to add scripts and HTML when creating or updating a testimonial. This is possible by the following fields:

- Client Name.
- Position/Web Address/Other.
- Location Reviewed/Product Reviewed/Item Reviewed.

The vulnerability allows an attacker to perform a wide variety of actions, such as stealing users' session tokens, or performing arbitrary actions on their behalf. In order to exploit this issue, the attacker has to lure/force a victim into opening a malicious website.

------------------------------------------------------------------------
Summer of Pwnage (https://sumofpwn.nl) is a Dutch community project. Its
goal is to contribute to the security of popular, widely used OSS
projects in a fun and educational way.

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