The FULL - Customer plugin for WordPress is vulnerable to Information Disclosure via the /health REST route in versions up to, and including, 2.2.3 due to improper authorization. This allows authenticated attackers with subscriber-level permissions and above to obtain sensitive information about the site configuration as disclosed by the WordPress health check.
https://plugins.trac.wordpress.org/browser/full-customer/tags/2.3/app/api/Controller.php?rev=2951561
https://plugins.trac.wordpress.org/browser/full-customer/tags/1.1.0/app/api/Health.php