MEDIUMCVSS 6.50% EPSS
OpenEMR before 8.5.0 contains a missing authorization vulnerability in the Patient Validation module that allows any authenticated user to retrieve patient demographic records. Attackers can send direct requests with wildcard mf_lname or empty mf_ parameters to the patientvalidation endpoint to enumerate the entire patient_data table.
Published 2026-11-13 · last modified 2026-11-13
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