The WP Directory Kit WordPress plugin through 1.5.7 does not check authorization or listing visibility in one of its shortcodes, allowing users with a role as low as Contributor to disclose non-public listing content, including password-protected and hidden fields, belonging to other users.
https://wpscan.com/vulnerability/aed24421-3bc6-4b36-bb61-d842d40d7c3c/