Document Title:
===============
Wordpress Content Text Slider on Post 6.8 - Persistent Vulnerability


References (Source):
====================
http://www.vulnerability-lab.com/get_content.php?id=1655


Release Date:
=============
2015-12-07


Vulnerability Laboratory ID (VL-ID):
====================================
1655


Common Vulnerability Scoring System:
====================================
3.5


Product & Service Introduction:
===============================
Content text slider on post is a WordPress plugin from gopiplus.com website. We can use this plugin to scroll the content vertically in the 
posts and pages. We have option to enter content title, description and link for the content. All entered details scroll vertically into the 
posts and pages. Yes we can enter the html content into the description text area also we can include the images into the scroller.

(Copy of the Vendor Homepage: https://wordpress.org/plugins/content-text-slider-on-post/ )


Abstract Advisory Information:
==============================
An independent vulnerability laboratory researcher discovered an application-side cross site scripting web vulnerability in the Wordpress Content Text Slider v6.8 web-application.


Vulnerability Disclosure Timeline:
==================================
2015-12-07:  Public Disclosure (Vulnerability Laboratory)


Discovery Status:
=================
Published


Affected Product(s):
====================
GoPiPlus
Product: Content Text Slider On Post - Plugin (Web-Application) 6.8


Exploitation Technique:
=======================
Remote


Severity Level:
===============
Medium


Technical Details & Description:
================================
An application-side POST inject web vulnerability has been discovered in the Wordpress Content Text Slider v6.8 web-application.
The vulnerability allows remote attackers to inject own malicious script codes to the application-side of the online-service.

The vulnerability is located in the `page` value parameter of the `options-general.php` file. Remote attackers are able to inject 
via POST method request to the `Title` or `Message/Content` input fields. After that the attacker is able to execute the code by 
usage of the insert details button. The execution of the malicious injected script code occurs in the `All popups` module when 
processing to request manually. An attacker is able to steal the admin cookie by usage of a moderator account. The attack vector 
is persistent on the application-side and the request method to inject is POST.

The security risk of the application-side web vulnerability is estimated as medium with a cvss (common vulnerability scoring system) count of 3.5.
Exploitation of the application-side web vulnerability requires no privilege web-application user account and only low or medium user interaction.
Successful exploitation of the vulnerabilities results in persistent phishing, session hijacking, persistent external redirect to malicious 
sources and application-side manipulation of affected or connected module context.

Request Method(s):
        [+] POST
Vulnerable File(s):
        [+] options-general.php
Vulnerable Module(s):
        [+] Title or Message/Content
Vulnerable Parameter(s):
        [+] page
Affected Module(s):
        [+] All popups


Proof of Concept (PoC):
=======================
The vulnerbaility can be exploited by remote attackers without privilege web-application user account and low or medium user interaction.
For security demonstration or to reproduce the vulnerability follow the provided information and steps below to continue.

Google Dork: inurl:/wp-content/plugins/content-text-slider-on-post/

Manual steps to reproduce the vulnerability ...
1. First you should Install content text slider on post
2. Add the following details as link
Note: http://localhost:8080/wp-admin/options-general.php?page=content-text-slider-on-post&ac=add
3. In the "Title" or "Message/Content" text area you can input place your javascript code and click on "insert detail" button
4. Execute the javascript codes in the "All popups" page
Note: http://localhost:8080/wp-admin/options-general.php?page=content-text-slider-on-post
5. Successful reproduce of the vulnerability!

Note: Attackers can steal admin cookie with moderator access to compromise the account system of the wordpress application and connected dbms.


Security Risk:
==============
The security risk of the persistent POST Inject web vulnerability in the wordpress content text slider module is estimated as medium. (CVSS 3.5)


Credits & Authors:
==================
ALIREZA_PROMIS 
Special Thanks : Sajjad Sotoudeh [Forum: http://iransec.net/forums]
Friends: Mr.Moein  , sheytan azzam , Mr.PERSIA  , HellBoy.Blackhat, Jok3r ,  Kamran Helish ,  Dr.RooT 


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=========================
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