Netgate pfSense CE (prior to 2.8.0 beta release) and corresponding Plus builds are vulnerable to command injection in the OpenVPN widget due to improper sanitization of user-supplied input to the OpenVPN management interface. An authenticated attacker can exploit this vulnerability by injecting arbitrary OpenVPN management commands via the remipp parameter.
https://www.netgate.com/blog/important-security-updates-for-pfsense-plus-24.11-and-ce-2.7.2
https://blog.brillantit.com/exploiting-pfsense-xss-command-injection-cloud-hijack/