CVE-2026-124459

HIGH 8.1

OpenEMR before 8.3.0 Cross-Patient IDOR via Encounter Form Viewers and Save Handlers

CVSS Score

8.1

EPSS Score

0.0%

EPSS Percentile

0th

OpenEMR before 8.3.0 contains an insecure direct object reference vulnerability in many encounter-form view and save endpoints that lack patient/encounter ownership checks. Authenticated clinical users can enumerate sequential form id values in requests such as soap/view.php and save.php to read and overwrite other patients' clinical records.

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:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

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-3mg9-27fw-m9j6 vulncheck.com: https://www.vulncheck.com/advisories/openemr-before-8.3.0-cross-patient-idor-via-encounter-form-viewers-and-save-handlers

Credits

CyberKareem arpitjain099