---
id: CVE-2026-124459
title: >-
  OpenEMR before 8.3.0 Cross-Patient IDOR via Encounter Form Viewers and Save
  Handlers
summary: >-
  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 va…
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'
cvssSource: cna
cwe:
  - CWE-639
vendor: openemr
product: openemr
affected:
  - openemr < 8.3.0
published: '2026-11-08'
updated: '2026-11-08'
sourceUpdated: '2026-11-08T13:15:47.168Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-124459'
references:
  - url: 'https://github.com/openemr/openemr/security/advisories/GHSA-3mg9-27fw-m9j6'
    label: GitHub Security Advisory (GHSA-3mg9-27fw-m9j6)
  - url: >-
      https://www.vulncheck.com/advisories/openemr-before-8.3.0-cross-patient-idor-via-encounter-form-viewers-and-save-handlers
    label: >-
      VulnCheck Advisory: OpenEMR before 8.3.0 Cross-Patient IDOR via Encounter
      Form Viewers and Save Handlers
tags:
  - cve.org
ingestedAt: '2026-11-08T13:50:34.969Z'
---

## Overview

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.

## Affected

- `openemr < 8.3.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.