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PlumeCMS 1.2.4 Cross Site Scripting

PlumeCMS 1.2.4 Cross Site Scripting
Posted Apr 5, 2012
Authored by Ivano Binetti

PlumeCMS versions 1.2.4 and below suffer from multiple persistent cross site scripting vulnerabilities.

tags | exploit, vulnerability, xss
advisories | CVE-2012-2156
MD5 | a7953333637c6cfae4aa1a7b0685d61f

PlumeCMS 1.2.4 Cross Site Scripting

Change Mirror Download
+--------------------------------------------------------------------------------------------------------------------------------+
# 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
+--------------------------------------------------------------------------------------------------------------------------------+
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
+---------------------------------------------------------------------------------------------------------------------------------+
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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