The Mapster WP Maps WordPress plugin before 1.24.0 does not perform any authorization or post-status check on a public REST endpoint, allowing unauthenticated users to retrieve the title and full content of any post regardless of its status, including unpublished (draft, pending, private, and trashed) posts.
https://wpscan.com/vulnerability/1994e67d-5fdc-445f-a09d-2b25d2b2f445/