Test using admin-ajax

The test facility in this plugin falls foul of some security rules, because it:

1. Directly accesses a PHP file in wp-content
2. Doesn’t have a CSRF token.

In our specific case it was being blocked by modsecurity, but I’m sure other setups are likely to have similar problems.

I believe both these issues would be addressed by changing the test to use WordPress’ built-in AJAX endpoint admin-ajax.php instead of directly addressing its own PHP file.

https://www.ads-software.com/plugins/active-directory-integration/