The Paid Membership Subscriptions – Effortless Memberships, Recurring Payments & Content Restriction plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the pms_stripe_connect_handle_authorization_return function in all versions up to, and including, 2.11.1. This makes it possible for unauthenticated attackers to change the Stripe payment keys.
The product does not perform an authorization check when an actor attempts to access a resource or perform an action.