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cPanel Entropy Chat Script Insertion Vulnerability Advisory Available in Danish 

Secunia Advisory: SA16609  
Release Date: 2005-11-04

Critical:
Moderately critical
Impact: Cross Site Scripting
Where: From remote
Solution Status: Unpatched

Software:cPanel 10.x

This advisory is currently marked as unpatched!
- Companies can be alerted when a patch is released!


Description:
Secunia Research has discovered a vulnerability in cPanel, which can be exploited by malicious people to conduct script insertion attacks.

Input passed to the chat message field in the pre-installed Entropy Chat script isn't properly sanitised before being used. This can be exploited to inject arbitrary script code, which will be executed in a user's browser session in context of an affected site when the malicious user data is viewed with the Microsoft Internet Explorer browser.

Example:
Send message <b style="width:expression([code])">text</b> via http://[host]:2084/

The vulnerability has been confirmed in versions 10.2.0-R82 and 10.6.0-R137. Other versions may also be affected.

Solution:
Edit the source code to ensure that input is properly sanitised.

Provided and/or discovered by:
Andreas Sandblad, Secunia Research

Original Advisory:
Secunia Research:
http://secunia.com/secunia_research/2005-56/advisory/



Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.

Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.

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9. CPanel Multiple Vulnerabilities
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