The Membership Plugin – Restrict Content plugin for WordPress is vulnerable to Missing Authentication in all versions up to, and including, 3.2.16 via the 'rcp_stripe_create_setup_intent_for_saved_card' function due to missing capability check. Additionally, the plugin does not check a user-controlled key, which makes it possible for unauthenticated attackers to leak Stripe SetupIntent client_secret values for any membership.
The Membership Plugin – Restrict Content plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.2.13 via the WordPress core search feature. This makes it possible for unauthenticated attackers to extract sensitive data from posts that have been restricted to higher-level roles such as administrator.