prog.cgi on D-Link DIR-3060 devices before 1.11b04 HF2 allows remote authenticated users to inject arbitrary commands in an admin or root context because SetVirtualServerSettings calls CheckArpTables, which calls popen unsafely.
https://www.iot-inspector.com/blog/advisory-d-link-dir-3060/
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10208
http://seclists.org/fulldisclosure/2021/Mar/23
http://packetstormsecurity.com/files/161757/D-Link-DIR-3060-1.11b04-Command-Injection.html