The WP VR WordPress plugin before 8.3.15 does not authorisation and CSRF in a function hooked to admin_init, allowing unauthenticated users to downgrade the plugin, thus leading to Reflected or Stored XSS, as previous versions have such vulnerabilities.
https://wpscan.com/vulnerability/c36314c1-a2c0-4816-93c9-e61f9cf7f27a