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Message-ID: <008c01c25c3b$eacca060$e62d1c41@kc.rr.com>
From: mattmurphy at kc.rr.com (Matthew Murphy)
Subject: Lycos HTMLGear Guestbook Script Injection Vulnerability

Lycos offers several advanced web applications through a service called
HTMLGear.  Among the services offered are guestbooks.  A vulnerability
exists in the Lycos guestbook that could enable someone to launch an attack
against visitors whose browsers supported inline CSS (IE, for example).

By specifying an e-mail address/web page URL like the following:

" STYLE="expression([javascript])

The JavaScript block will execute.  Some less-paranoid versions of the
guestbook also allow a typical IMG attack:

<IMG SRC="javascript:[javascript]">

This will yield the same results in many cases.

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