Jenkins RadarGun Plugin 1.7 and earlier does not configure its YAML parser to prevent the instantiation of arbitrary types, resulting in a remote code execution vulnerability.
https://jenkins.io/security/advisory/2020-02-12/#SECURITY-1733
http://www.openwall.com/lists/oss-security/2020/02/12/3
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-2123