full-disclosure - HomestayFinder XSS Vulnerability in Wikipedia Mirror

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Message-ID: <46943B60.7050205@susam.in>
Date: Wed, 11 Jul 2007 07:37:28 +0530
From: Susam Pal <susam@...am.in>
To: full-disclosure@...ts.grok.org.uk
Subject: HomestayFinder XSS Vulnerability in Wikipedia
	Mirror

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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