Tutorial for Hack a website Using DNN [Dot Net Nuke] Exploit

First Check whether the Website is vulnerable or not( if you don't know how to do it, read this)

Or simply copy this code to google and hit enter:

inurl:/portals/0

Open the home page and check any image which is located in /portals/0/
Check the location of the image. It should be located in /portals/0/

For e.g. in case of http://www.example.com ..the image is located at location- http://