DNN (aka DotNetNuke) before 9.1.1 has Remote Code Execution via a cookie, aka "2017-08 (Critical) Possible remote code execution on DNN sites."
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-9822
http://www.dnnsoftware.com/community/security/security-center