FBC Market v1.1 - Cross Site Scripting Vulnerability

Document Title:
===============
FBC Market v1.1 - Cross Site Scripting Vulnerability


References (Source):
====================
http://www.vulnerability-lab.com/get_content.php?id=364


Release Date:
=============
2011-12-19


Vulnerability Laboratory ID (VL-ID):
====================================
364


Common Vulnerability Scoring System:
====================================
1.5


Product & Service Introduction:
===============================
FBC-Market is a application that allows you to run your own online marketplace or classifieds listing site 
similar to Craigslist. It was written in PHP and uses MySQL to for data storage. Additionally, it uses 
jQuery for elegant effects and that web 2.0 pizzazz you ve always dreamed of.

The general design is simple and clean which should go well with any site, customization can be done easily 
through the CSS file. You can add your header and footer to it or include it in an iframe and you are ready 
to roll. And if you want to get your hands dirty in code, the comments will help you know what is going on.

(Copy of the Vendor Homepage: http://www.freeboxclub.com/)


Abstract Advisory Information:
==============================
Vulnerability-Lab Team discovered a non persistent (client side) cross site scripting vulnerability on FBC Market v1.1 CMS.


Vulnerability Disclosure Timeline:
==================================
2011-09-19:	Public or Non-Public Disclosure


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


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


Severity Level:
===============
Low


Technical Details & Description:
================================
A non persistent cross site scripting vulnerability is detected on the commercial FBC Market v1.1 CMS.
The vulnerability allows an remote attacker with required user inter action to hijack customer sessions via cross site scripting.
Successful exploitation can result in account steal, client side phishing or session hijacking.

Vulnerbale Module(s):
                                                                    [+] Search (Suche)

Picture(s):
                                                                    ../1.png


Proof of Concept (PoC):
=======================
The vulnerability can be exploited by remote attacker with required user inter action.
For demonstration or reproduce ...

Note: To reproduce the issue include the script code on the search engine input field.

PoC:
\"><script>alert(VULNERABILITYLAB)</script>


Security Risk:
==============
The security risk of the cross site scripting vulnerability is estimated as medium(+).


Credits & Authors:
==================
Vulnerability Research Laboratory - Ucha Gobejishvili (longrifle0x) 


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-
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states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation 
may not apply. We do not approve or encourage anybody to break any vendor licenses, policies, deface websites, hack into databases 
or trade with fraud/stolen material.

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