CVE-2019-16701
pfSense through 2.3.4 through 2.4.4-p3 allows Remote Code Injection via a methodCall XML document with a pfsense.exec_php call containing shell metacharacters in a parameter value.
Date published : 2019-09-25
http://packetstormsecurity.com/files/154587/pfSense-2.3.4-2.4.4-p3-Remote-Code-Injection.html