OpenEMR before 8.4.0 contains an authorization bypass vulnerability in the FHIR GET /fhir/Person/:uuid route that allows patient-portal users to read any staff member's demographics by bypassing compartment enforcement. Attackers holding a patient SMART token with patient/Person.read can harvest staff Person UUIDs from Appointment references to retrieve names, home addresses, phone numbers, and personal emails.
CVSS Details
- CVSS 4.0 Base Score: 7.1
- CVSS 3.1 Base Score: 6.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)
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