From: Micha Borrmann (borrmannsyss.de)
Date: Mon Feb 13 2006 - 10:30:39 CST

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SySS-Advisory: XSS-vulnerability in guestbook-php-script
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Problem discovered: February 3d 2006
Vendor contacted: February 7th 2006
Advisory published: February 13th 2006

AUTHOR: Micha Borrmann (borrmannsyss.de)
        SySS GmbH
        D-72070 Tuebingen / Germany

APPLICATION: gastbuch
AFFECTED VERSION: all < 1.3.3 (1.3.2 tested)

Remotely exploitable: Yes

SEVERITY: Medium

DESCRIPTION:
The guestbook software published on http://www.php4scripte.de/gast.php
allows HTML- and javascriptcode to be injected in the "URL"-field.

EXAMPLE:
http://www.site.com/"<script>alert(123)</script>"

VENDOR STATUS: The vendor published a fixed version (1.3.3) on
http://www.php4scripte.de
less than five hours after the problem was reported.

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