CVE-2026-124485

MEDIUM 6.5

OpenEMR before 8.3.0 Cross-Patient Document Disclosure via Onsite Documents API

CVSS Score

6.5

EPSS Score

0.0%

EPSS Percentile

0th

OpenEMR before 8.3.0 contains an authorization bypass vulnerability in the patient portal onsitedocuments API that allows authenticated patients to read other patients' documents by overriding query criteria. Attackers can send empty pid_Equals and denialReason_IsNotLike parameters to remove patient scoping and locked filters, exposing consent bodies, signatures, file paths, and template data.

CWE	CWE-639
Vendor	openemr
Product	openemr
Published	Nov 8, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Affected Versions

openemr / openemr

0 < 8.3.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/openemr/openemr/security/advisories/GHSA-v688-m84c-5h4v vulncheck.com: https://www.vulncheck.com/advisories/openemr-before-8.3.0-cross-patient-document-disclosure-via-onsite-documents-api

Credits

christos-cantina-security