---
id: "CVE-2026-124453"
page: "https://infrastack.ai/live/CVE-2026-124453"
kind: "vulnerability"
aliases: ["CVE-2026-124453"]
title: "OpenEMR: patient portal lets logged-in patients change other patients' settings"
severity: "high"
cvss: 7.1
epss: null
exploited: false
status: "open"
category: "runtime"
products: []
ecosystems: []
tags: ["healthcare", "openemr", "patient-portal", "runtime", "self-hosted"]
not_affected_if: ["managed-hosting", "openemr-8.3.0-or-later", "portal-disabled"]
published_at: "2026-11-08T14:18:12+00:00"
first_seen_at: "2026-11-08T14:48:39+00:00"
updated_at: "2026-11-08T14:49:47+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-124453", "first_seen_at": "2026-11-08T14:48:39+00:00"}]
exploit_sources: []
---

# OpenEMR: patient portal lets logged-in patients change other patients' settings

Link for people: https://infrastack.ai/live/CVE-2026-124453 (this .md is for agents)

OpenEMR before 8.3.0 has an insecure direct object reference in portal/lib/persist.php. An authenticated patient can change portal settings of another patient by altering the patient ID in a JSON POST request.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the OpenEMR version in use; it is affected if it is below `8.3.0`.
- Look for `portal/lib/persist.php` in the OpenEMR install directory.

## Fix

- OpenEMR: upgrade to `8.3.0` or later.

## Timeline

- 2026-11-08T14:48:39+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-124453

## Documents

- [advisory] Vendor advisory: github.com https://github.com/openemr/openemr/security/advisories/GHSA-rrw3-g25h-x68h
- [advisory] Third-party advisory: www.vulncheck.com https://www.vulncheck.com/advisories/openemr-before-8.3.0-idor-in-portal-patient-settings-via-persist-php

## From the sources

OpenEMR before 8.3.0 contains an insecure direct object reference vulnerability in portal/lib/persist.php that allows authenticated portal patients to write settings for other patients. Attackers can modify the setting_patient parameter in a JSON POST request to another patient's PID, altering that patient's portal settings such as the portal theme.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_