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eSupport Cross Site Scripting
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SUMMARY
<http://www.kayako.com/> Kayako eSupport is "a popular helpdesk, and
support software. It is used by many businesses for customer support
purposes".
eSupport is prone to cross site scripting attacks that allows an attacker
to use the application as an attack vector, or an attacker to access
sensitive user information.
DETAILS
Vulnerable Systems:
* Kayako eSupport version 2.3
Cross site scripting exists in Kayako eSupport. This vulnerability exists
due to user supplied input not being checked properly. Below are a few
benign examples of the previously mentioned issues:
http://path/index.php?_a=knowledgebase&_j=questiondetails&_i=[INT][XSS]
http://path/index.php?_a=knowledgebase&_j=questionprint&_i=[INT][XSS]
http://path/index.php?_a=troubleshooter&_c=[INT][XSS]
http://path/index.php?_a=knowledgebase&_j=subcat&_i=[INT][XSS]
This vulnerability could be used to steal cookie based authentication
credentials within the scope of the current domain, or render hostile code
in a victim's browser. Where [INT] and [XSS] should be a valid integer and
your choice of code, for example: "><h1>Cross Site Scripting</h1>
ADDITIONAL INFORMATION
The information has been provided by <mailto:security@gulftech.org> James
Bercegay.
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