See how wp fusion compares to other vendors in security performance
The WP Fusion Lite WordPress plugin before 3.48.0 does not require authentication on a settings handler that runs during admin initialization, allowing unauthenticated users to overwrite the site's CRM integration endpoint and credentials, after which synced user data is delivered to an attacker-chosen host.
The WP Fusion Lite WordPress plugin before 3.48.0 does not perform a capability check on two of its admin AJAX handlers, allowing any authenticated subscriber to read other users' email addresses and to trigger a cross-user CRM re-sync.