full-disclosure - Re: HomestayFinder XSS Vulnerability in Wikipedia Mirror

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Message-ID: <4694A4EF.80101@sess-on.net>
Date: Wed, 11 Jul 2007 11:37:51 +0200
From: Matjaz Debelak <killerx@...s-on.net>
To: full-disclosure@...ts.grok.org.uk
Subject: Re: HomestayFinder XSS Vulnerability in Wikipedia
 Mirror

Well, it does not appear to work for me in any browser (tested Firefox
2.0.0.3 and Konqueror).

LP Killer_X

Susam Pal wrote:
> There is an XSS vulnerability in HomestayFinder's 'Dictionary.aspx'
> script which is responsible for mirroring the content of Wikipedia. I
> found this interesting because here a script injected in one website
> exploits an XSS vulnerability in another website.
>
> I am including only a short example to demonstrate the issue. The
> complete document is available at:-
> http://susam.in/security/advisory-2007-07-11.txt
>
> http://en.wikipedia.org/wiki/User:Susam_pal/Sandbox consists of the
> following as the source wiki markup:
>
>    <script>alert('XSS Demo')</script>
>
> http://www.homestayfinder.com/Dictionary.aspx?q=User:Susam_pal/Sandbox
> consists of the same code as HTML without the special characters encoded
> as HTML entities. Hence, the script is executed on the browser of the
> visitor.
>
> Contact Information:-
> Susam Pal
> susam@...am.in
> http://susam.in/
>
>
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