The WP Maps WordPress plugin before 4.9.7 does not perform a capability check in one of its AJAX actions and does not properly validate a user-controlled path before using it in a file inclusion, allowing users with a Subscriber account to include and execute arbitrary existing local PHP files on the server.
https://wpscan.com/vulnerability/015d7f26-81f2-4b15-b52e-3d28d68eb5bd/