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usd250 helpdesk XSS vulnerabily.

from [Joseph . giron13] Network Security [Permanent Link]
Subject: usd250 helpdesk XSS vulnerabily.
Date: 22 Oct 2007 22:37:20 -0000 

http://www.oneorzero.com/

Within the helpdesk utility usd250, an XSS in the comments field is possible. 
The comments strip script tags and replace them with (not allowed), but
script tags dont need to be in place for XSS. Something along the lines of...
<b onmouseover="window.alert('omghax')">some text</b> Suffices. 

The fix is to use htmlentities() or htmlspecialchars() to filter ALL html
from user input.
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