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phpBB "url" bbcode Script Insertion Vulnerability
Secunia Advisory: SA18252
Release Date: 2006-01-02
Popularity: 39,873 views

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

Software:phpBB 2.x

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Description:
A vulnerability has been reported in phpBB, which can be exploited by malicious people to conduct script insertion attacks.

Input passed via the "url" bbcode tag 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 with the Microsoft Internet Explorer browser.

The vulnerability has been reported in version 2.0.18. Prior versions may also be affected.

Solution:
Update to version 2.0.19.
http://www.phpbb.com/downloads.php

Provided and/or discovered by:
Reported by vendor.


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