An issue was discovered in Rockwell Automation Allen-Bradley PowerMonitor 1000. An unauthenticated user can add/edit/remove administrators because access control is implemented on the client side via a disabled attribute for a BUTTON element.
https://www.exploit-db.com/exploits/45937/
https://ics-cert.us-cert.gov/advisories/ICSA-19-050-04
http://www.securityfocus.com/bid/108538