DotNetNuke 2.0 through 4.8.4 allows remote attackers to load .ascx files instead of skin files, and possibly access privileged functionality, via unknown vectors related to parameter validation.
The installation wizard in DotNetNuke (DNN) before 7.4.1 allows remote attackers to reinstall the application and gain SuperUser access via a direct request to Install/InstallWizard.aspx.