CVE-2026-54460 OpenReception Appointment Booking Software - Authentication Bypass

OpenReception appointment booking software < 1.1.1 contains an authentication bypass caused by missing WebAuthnService.verifyRegistration and improper passkey binding, letting unauthenticated attackers create staff sessions and access tenant data, exploit requires knowledge of public tenant ID and target staff email.

CVSS base score 9.8 /10
Critical
CISA KEV
Not listed
Public exploit
None known
EPSS
0.70% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Authentication Bypass
Impact
Broken Authentication, Information Disclosure, Privilege Escalation, Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
17 September 2026
Updated
15 October 2026
Weakness
CWE-306

Vendor fix

Update to version 1.1.1 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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