Clerk <= 3.8.2 - Authorization Bypass via Insufficient Validation

The Clerk plugin for WordPress is vulnerable to Authorization Bypass via Insufficient Validation in versions up to, and including, 3.8.2. This is due to the validation function for all API requests using comparison operators to verify API keys against those stored in the site options. This leaves the API request validation vulnerable to time-based attacks. This makes it possible for unauthenticated attackers to potentially bypass API validation or to discover API keys.