cvedb.io
CVE-2026-48088
CRITICAL · CVSS 9.4
EPSS exploitation probability: 0%
Published 2026-08-06T22:17:11.893 · Last modified 2026-08-06T22:17:11.893

Summary

OpenReception's appointment booking software provides an end-to-end encrypted appointment booking platform. Prior to version 1.0.4, the route `POST /api/tenants/{tenantId}/staff/{staffId}/crypto` accepts and stores attacker-controlled ML-KEM-768 public keys against any tenant on the platform without authentication. The handler logs an "Unauthorized crypto key storage attempt" warning when neither a session nor a registration cookie is present, then proceeds to insert the row regardless. The platform's E2E claim that "even administrators cannot view sensitive information" is broken: any unauthenticated network attacker can register themselves as an additional encryption recipient for any tenant's future patient appointments. A second variant of the bug suppresses the unauthorized-warning lo

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.