Document Title:
===============
Wordpress Contentive Theme - Cross Site Web Vulnerability


References (Source):
====================
https://www.vulnerability-lab.com/get_content.php?id=2065


Release Date:
=============
2017-05-22


Vulnerability Laboratory ID (VL-ID):
====================================
2065


Common Vulnerability Scoring System:
====================================
4.3


Vulnerability Class:
====================
Cross Site Scripting - Non Persistent


Product & Service Introduction:
===============================
Contentive is a global B2B media and information company, helping professionals and businesses excel in a digital world. We provide an
engaging mix of news, events, intelligence and training, across Digital Marketing, Digital Finance and other Business Media verticals. 

(Copy of the Vendor Homepage: https://www.contentive.com/ )


Abstract Advisory Information:
==============================
An independent vulnerability laboratory researcher discovered a stored cross site scripting vulnerability in the official Contentive Theme for Wordpress.


Vulnerability Disclosure Timeline:
==================================
2015-05-23: Public Disclosure (Vulnerability Laboratory)


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


Affected Product(s):
====================

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


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


Technical Details & Description:
================================
A stored cross site scripting web vulnerability has been discovered in the official Wordpress Contentive Theme web-application.
The non-persistent vulnerability allows remote attackers to inject own malicious script code to client-side application to browser requests.

The client-side cross site vulnerability is located in the `label` value of the page module GET method request. Remote attackers are able to inject 
own malicious script codes to the client-side of the online service web-application to compromise user session information or data.

The security risk of the cross site web vulnerability is estimated as medium.
Exploitation of the cross site vulnerability requires no privileged web-application user account and low user interaction. 
Successful exploitation results in session hijacking, persistent phishings attacks, persistent external redirect and malware loads or persistent 
manipulation of affected and connected module context.

Request Method(s):
[+] GET

Vulnerable Service(s):
[+] Contentive Theme (Wordpress)

Vulnerable Module(s):
[+] Input

Vulnerable Parameter(s):
[+] label


Proof of Concept (PoC):
=======================
The remote cross site vulnerability can be exploited by remote attackers privileged web-application user accounts with low user interaction.
For security demonstration or to reproduce the vulnerability follow the provided information and steps below to continue.


PoC: Example
http://wp.localhost:8080/?s=[CLIENT SIDE CROSS SITE SCRIPTING VULNERABILITY!]

PoC: Exploitation
http://wp.localhost:8080/?s="'/><svg/onload=alert(/31337/);>


PoC: Vulnerable Source
<form role="search" method="get" id="searchform" action="http://wp.localhost:8080">
    <div>
    <input type="text" value=""'/><svg/onload=alert(123);>" name="s" id="s"/>
    <input type="submit" id="searchsubmit" value=""/>
    </div>
    </form>	


Reference(s):
http://wp.localhost:8080/?s=


Solution - Fix & Patch:
=======================
The vulnerability can be patched by a parse and encode of the vulnerable `label` value in the webpage GET method request.
Encode the parameter and restrict the value input to prevent further script code injection attacks.


Security Risk:
==============
The security risk of the stored cross site scripting vulnerability in the wordpress theme is estimated as medium.


Credits & Authors:
==================
ZwX - [http://www.vulnerability-lab.com/show.php?user=ZwX]


Disclaimer & Information:
=========================
The information provided in this advisory is provided as it is without any warranty. Vulnerability Lab disclaims all warranties, either expressed or 
implied, including the warranties of merchantability and capability for a particular purpose. Vulnerability-Lab or its suppliers are not liable in any 
case of damage, including direct, indirect, incidental, consequential loss of business profits or special damages, even if Vulnerability Labs or its 
suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability mainly for incidental
or consequential damages so the foregoing limitation may not apply. We do not approve or encourage anybody to break any licenses, policies, deface 
websites, hack into databases or trade with stolen data. We have no need for criminal activities or membership requests. We do not publish advisories 
or vulnerabilities of religious-, militant- and racist- hacker/analyst/researcher groups or individuals. We do not publish trade researcher mails, 
phone numbers, conversations or anything else to journalists, investigative authorities or private individuals. 

Domains:    www.vulnerability-lab.com		- www.vulnerability-db.com					- www.evolution-sec.com
Programs:   vulnerability-lab.com/submit.php 	- vulnerability-lab.com/list-of-bug-bounty-programs.php 	- vulnerability-lab.com/register.php
Feeds:	    vulnerability-lab.com/rss/rss.php 	- vulnerability-lab.com/rss/rss_upcoming.php 			- vulnerability-lab.com/rss/rss_news.php
Social:	    twitter.com/vuln_lab		- facebook.com/VulnerabilityLab 				- youtube.com/user/vulnerability0lab

Any modified copy or reproduction, including partially usages, of this file, resources or information requires authorization from Vulnerability Laboratory. 
Permission to electronically redistribute this alert in its unmodified form is granted. All other rights, including the use of other media, are reserved by 
Vulnerability Lab Research Team or its suppliers. All pictures, texts, advisories, source code, videos and other information on this website is trademark 
of vulnerability-lab team & the specific authors or managers. To record, list, modify, use or edit our material contact (admin@) to get an ask permission.

				    Copyright © 2017 | Vulnerability Laboratory - [Evolution Security GmbH]™