The Advanced Form Integration — Connect Forms to 200+ Apps WordPress plugin before 2.1.1 does not restrict the WordPress role assigned when it creates a user from a public form submission, allowing unauthenticated visitors to create an administrator account when an active integration maps the user role to a public form field. This requires a specific, non-default multi-Advanced Form Integration — Connect Forms to 200+ Apps WordPress plugin before 2.1.1 configuration.
https://wpscan.com/vulnerability/614b9517-d6d5-499f-8172-280280a312b2/