GHSA-cr7p-cr3q-h5cm: Budibase: Account Enumeration via Login Lockout Response Differential

The login lockout mechanism in Budibase creates an observable response discrepancy that allows unauthenticated attackers to enumerate valid email addresses. When an existing user’s account is locked after 5 failed login attempts, the server returns a distinct 403 response with X-Account-Locked: 1 and Retry-After: 900 headers plus the message “Account temporarily locked.” For non-existing users, the response is always a generic 403 "Unauthorized" regardless of attempt count, because the lockout counter is never incremented.