Re: Advanced Guestbook

[Stewart Souter <webmaster@xxxxxxxxxxxxxxx>]

In-Reply-To: <8ea2ac2004120211406650777b@xxxxxxxxxxxxxx>

This exploit does not exist. I wish people would actually check their facts before crying wolf. Advanced guestbook 2.3.1 already checks the URL as it is submitted. It uses the following if statement.

if (htmlspecialchars($this->url) != "$this->url") {
  $this->url = '';
}

which can be found in lib/add.entry.php.

regards,
Carbonize

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>Message-ID: <8ea2ac2004120211406650777b@xxxxxxxxxxxxxx>
>Date: Thu, 2 Dec 2004 20:40:21 +0100
>From: Emile van Elen <emile.van.elen@xxxxxxxxx>
>Reply-To: Emile van Elen <emile.van.elen@xxxxxxxxx>
>To: bugtraq@xxxxxxxxxxxxxxxxx
>Subject: Advanced Guestbook
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>There's a XSS in Advanced Guestbook 2.3.1
>
>For example:
>
>index.php?entry=&lt;script&gt;alert(document.cookie)&lt;/script&gt;
>
>
>greetings,
>-- 
>Emile van Elen
>