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Advisories

OpenEMR before 8.4.0 Improper Authorization via Prescription REST API

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Severity
high
Date
Affecting

  • openemr >= 0, < 8.4.0

CWE
  • CWE-863 Incorrect Authorization
CVSS
8.7
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
Credit
christos-cantina-security
Description
OpenEMR before 8.4.0 contains an incorrect authorization vulnerability because the prescription REST API routes check the patients.med ACL instead of patients.rx and request no specific permission bit, so read-only Medical/History access passes the check. Authenticated staff users can reuse the UI-exposed APICSRFTOKEN to enumerate prescription UUIDs, forge prescriptions for arbitrary patients, and deactivate existing prescriptions tenant-wide.

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