Vulnerability Description
OpenReception's appointment booking software provides an end-to-end encrypted appointment booking platform. In versions 2.1.0 and prior, a returning client's six-digit booking PIN can be brute-forced online in the victim tenant. A successful guess yields the client's booking access token, granting access to that client's appointment tunnel, which holds their end-to-end-encrypted appointment data, and the ability to act as the client, for example adding or cancelling appointments in the tunnel. The bypass is cross-tenant: state owned by one tenant removes an authentication protection of a different tenant. This crossing of the tenant boundary is the basis for the scope-changed vector. At time of publication, there are no publicly available patches.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
FAQ
What is CVE-2026-65825?
CVE-2026-65825 is a vulnerability with a CVSS score of 7.5 (HIGH). OpenReception's appointment booking software provides an end-to-end encrypted appointment booking platform. In versions 2.1.0 and prior, a returning client's six-digit booking PIN can be brute-forced ...
How severe is CVE-2026-65825?
CVE-2026-65825 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-65825?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.