Comment Board XSS Vulnerability

Published: 24 September 2003

Released: 24 September 2003

Affected Systems: Comment Board

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

Issue: Remote attackers can inject XSS script.

Description:

============

"Comment Board works straight away with little or no configuration required and

provides a wealth of exciting features that will keep your web site visitors

coming back for more. Check out our online demo and try a free downloadable

version now."

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:

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

Suggestions:

============

Filter all variables.

Discovered by / credit:

=======================

Bahaa Naamneh

b_naamneh (at) hotmail (dot) com [email concealed]

http://www.bsecurity.tk

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