classifiedZONE v1.2 XSS vuln.

classifiedZONE v1.2 XSS vuln.

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Vuln. discovered by : r0t
Date: 28 march 2006
vendor:http://www.fusionzone.com/applications/classifieds/
affected versions:v.1.2 and prior
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Vuln. Description:

classifiedZONE contains a flaw that allows a remote cross site
scripting attack. This flaw exists because input passed to "rtn"
paremeter in "accountlogon.cfm" isn't properly sanitised before being
returned to the user.
This could allow a user to create a specially crafted URL that would
execute arbitrary code in a user's browser within the trust
relationship between the browser and the server, leading to a loss of
integrity.

example:

/accountlogon.cfm?rtn=%22%3Cscript%3Ealert('r0t')%3C/script%3E

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Solution:
Edit the source code to ensure that input is properly sanitised.
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More information @ unsecured-systems.com/forum/