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Thread-IT Message Board XSS Vulnerability

From: Bahaa Naamneh (b_naamnehhotmail.com)
Date: Wed Sep 24 2003 - 15:45:29 CDT

Thread-IT Message Board XSS Vulnerability

Published: 24 September 2003

Released: 24 September 2003

Affected Systems: Thread-IT Message Board

Vendor: http://www.ymonda.co.uk

Issue: Remote attackers can inject XSS script.

Description:
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"Thread-IT is a simple message board product that uses classic ASP scripts and an Access database. Installation of this product is simple even for people that have no ASP scripting experience."

Details:
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It's possibile to inject XSS script in the Topic Title, Name and Message fields.

Examples:

"><script> this code will hide every thing after it including the the board topics if any attacker write it in the topic title.

<script>windows.open("URL");</script> this code will open a new window when the board loaded.

Solution:
=========

The vendor has been contacted and a patch is not yet produced.

Suggestions:
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Filter all variables.

Discovered by / credit:
=======================

Bahaa Naamneh
b_naamnehhotmail.com
http://www.bsecurity.tk