CVE-2026-48075 OpenReception's unauthenticated add-to-tunnel endpoint accepts arbitrary appointment injections

OpenReception's appointment booking software provides an end-to-end encrypted appointment booking platform. Prior to version 1.0.5, the add-to-tunnel endpoint creates a new appointment row in any client tunnel without any caller authentication. A request that supplies any valid tunnelId and any...

CVE-2026-48075

OpenReception’s OpenReception appointment-booking software contains an unauthenticated add-to-tunnel endpoint prior to version 1.0.5. The endpoint accepts any valid tunnelId and any emailHash (even across tunnels) to insert an appointment with status = CONFIRMED, attacker-controlled ciphertext fi...