bugtraq - php-fusion 4.x vuln

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Date: 8 Feb 2005 10:27:56 -0000
From: <thegreatone2176@...oo.com>
To: bugtraq@...urityfocus.com
Subject: php-fusion 4.x vuln

TheGreatOne2176, Reapercore

I have a found an error in php-fusion 4.x where you can view any thread on the forum.

In fusion_forum/viewthread.php the $_GET variables arent properly checked or queried making it possible to view all threads. The example I tested was

fusion_forum/viewthread.php?forum_id=10000&forum_cat=100000&thread_id=2

forum_id and forum_cat are not valid id's making the script skip them entirely.  So the error comes in since each thread is assigned a certain integer (thread_id for this script) and since the category checks were being skipped, I could just browse the forum by picking a thread_id. I went number by number and could view all of the threads in the protected forums.