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Phorum "Username" Script Insertion Vulnerability
Secunia Advisory: SA16667
Release Date: 2005-09-02
Last Update: 2005-09-28
Popularity: 6,550 views

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

Software:Phorum 5.x

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CVE reference:CVE-2005-2836


Description:
Scott Dewey has reported a vulnerability in Phorum, which can be exploited by malicious people to conduct script insertion attacks.

Input passed to the "Username" field in "register.php" isn't properly sanitised before being used. This can be exploited to inject arbitrary HTML and 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.

The vulnerability has been reported in version 5.0.17a and prior.

Solution:
Update to version 5.0.18:
http://phorum.org/downloads/phorum-5.0.18.tar.gz

Provided and/or discovered by:
Scott Dewey

Changelog:
2005-09-28: Added CVE reference.


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