HIGH 8.7 NVD
CVE-2026-124484
OpenEMR before 8.4.0 contains a missing authorization vulnerability in portal onsite-document APIs that allows any authenticated core user to access cross-patie
OpenEMR before 8.4.0 contains a missing authorization vulnerability in portal onsite-document APIs that allows any authenticated core user to access cross-patient documents. Attackers can omit the patientId parameter and supply arbitrary record IDs to list, read, and overwrite other patients' portal documents, signatures, and template data.
References
- https://github.com/openemr/openemr/security/advisories/GHSA-4r76-rq83-hgpg
- https://www.vulncheck.com/advisories/openemr-before-8.4.0-missing-authorization-in-portal-
This high severity vulnerability with a CVSS score of 8.7 was published on 2026-11-08 via NVD.
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