Plume CMS 1.2.4 - Multiple Persistent Cross-Site Scripting

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# Exploit Title     : PlumeCMS <= 1.2.4 Multiple Persistent XSS

# Date              : 04-04-2012

# Author            : Ivano Binetti (http://www.ivanobinetti.com)

# Software link     : http://sourceforge.net/projects/pxsystem/files/latest/download?source=directory

# Vendor site       : http://pxsystem.sourceforge.net/

# Version           : 1.2.4 (latest) and lower

# Tested on         : Debian Squeeze (6.0)

# Original Advisory : http://www.webapp-security.com/2012/04/plumecms/

# CVE               : CVE-2012-2156

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Summary

1)Introduction

2)Vulnerability Description

 2.1 "u_email" parameter

 2.2 "u_realname" parameter

 2.3 "c_author" parameter

3)Exploit

 3.2 Exploit "u_email" parameter

 3.2 Exploit "u_realname" parameter

 3.3 Exploit "c_author" parameter

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1)Introduction

PlumeCMS is a "Versatile Content Management System in PHP on top of MySQL".



2)Vulnerability Description

PlumeCMS 1.2.4 (and below) is prone to multiple peristent XSS vulnerability due to an improper input sanitization of multiple

parameters.

 2.1 "u_email" parameter

 "u_email"  parameters is not correctly sanitized before being passed to server side script "manager/users.php" via http POST 

 method. An attacker - who is able to change his profile settings - could insert malicious code into "Email" field

 - within "Authors" template - in order to create a persistent XSS vulnerability for all user/admin who access to Plume's 

 management interface.

 

 2.2 "u_realname" parameter

 "u_realname" parameter is not correctly sanitized before being passed to server side script "manager/users.php" via http POST 

 method. An attacker - who is able to change his profile settings - could insert malicious code into "Name" field

 - within "Authors" template - in order to create a persistent XSS vulnerability for all user/admin who access to Plume's 

 management interface.



 2.3 "c_author" parameter

 An unauthenticated user could insert html/javascript code in "Author" field within "ADD A COMMENT" section - which is present

 in every web page - due to an incorrect sanitization of "c_author" parameter. This will produce a Persistent XSS vulnerability

 for all user/admin who will click on "Comments" tab within Plume's administration interface. 



3)Exploit 

 3.1 Exploit "u_email" parameter

 Insert the following code in "Email" field within "Authors" template under "manager/users.php?user_id=<user_id>":

 <script>alert("xss")</script>



 3.2 Exploit "u_realname" parameter

 Insert the following code in "Name" field within "Authors" template under "manager/users.php?user_id=<user_id>":

 <script>alert("xss")</script>



 3.3 Exploit "c_author" parameter

 Insert the following code in "Author" field within "ADD A COMMENT" section":

 <script>alert("xss")</script>

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