PowerJob Worker version 5.1.2 (and likely earlier versions) exposes the /worker/deployContainer HTTP endpoint without authentication on the default transport port. This allows a remote attacker to execute arbitrary code.
https://github.com/PowerJob/PowerJob/blob/master/SECURITY.md
https://github.com/PowerJob/PowerJob
https://gist.github.com/unpredictable21/fcb62d394db30525412c4b5b1efd0233