DotNetNuke 'InstallWizard.aspx' Cross Site Scripting Vulnerability

Summary
This host is running DotNetNuke and is prone to cross site scripting vulnerability.
Impact
Successful exploitation could allow remote attackers to execute arbitrary HTML and script code in a user's browser session in the context of an affected site. Impact Level: Application
Solution
Upgrade to DotNetNuke version 5.06.02 or later. For updates refer to http://www.dotnetnuke.com
Insight
The flaw is caused by improper validation of user-supplied input to the '__VIEWSTATE' parameter in Install/InstallWizard.aspx, which allows attackers to execute arbitrary HTML and script code in a user's browser session in the context of an affected site.
Affected
DotNetNuke versions 5.05.01 and 5.06.00
References