Sensitive information exposure occurs via the '/dokan/v1/stores/{id}/reviews' REST API endpoint. The `prepare reviews for response()` method includes reviewer email addresses, usernames, and user IDs in the API response. This allows unauthenticated attackers to extract the email addresses, usernames, and user IDs of all customers who have left reviews on any vendor's store. This issue requires the Pro version of the plugin to be installed and activated, with store reviews enabled.