Description
OpenEMR is a free and open source electronic health records and medical practice management application. Prior to version 8.0.0, in `portal/portal_payment.php`, the patient id used for the page is taken from the request (`$pid = $_REQUEST['pid'] ?? $pid` and `$pid = ($_REQUEST['hidden_patient_code'] ?? null) > 0 ? $_REQUEST['hidden_patient_code'] : $pid`) instead of being fixed to the authenticated portal user. The portal session already has a valid `$pid` for the logged-in patient. Overwriting it with user-supplied values and using it without authorization allows a portal user to view and interact with another patient's demographics, invoices, and payment history—horizontal privilege escalation and IDOR. Version 8.0.0 contains a fix for the issue.
Published: 2026-02-27
Score: 7.1 High
EPSS: < 1% Very Low
KEV: No
Impact: Horizontal Privilege Escalation
Action: Apply Patch
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Remediation

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History

Tue, 03 Mar 2026 19:30:00 +0000

Type Values Removed Values Added
First Time appeared Open-emr
Open-emr openemr
CPEs cpe:2.3:a:open-emr:openemr:*:*:*:*:*:*:*:*
Vendors & Products Open-emr
Open-emr openemr

Mon, 02 Mar 2026 12:15:00 +0000

Type Values Removed Values Added
First Time appeared Openemr
Openemr openemr
Vendors & Products Openemr
Openemr openemr

Fri, 27 Feb 2026 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 27 Feb 2026 17:00:00 +0000

Type Values Removed Values Added
Description OpenEMR is a free and open source electronic health records and medical practice management application. Prior to version 8.0.0, in `portal/portal_payment.php`, the patient id used for the page is taken from the request (`$pid = $_REQUEST['pid'] ?? $pid` and `$pid = ($_REQUEST['hidden_patient_code'] ?? null) > 0 ? $_REQUEST['hidden_patient_code'] : $pid`) instead of being fixed to the authenticated portal user. The portal session already has a valid `$pid` for the logged-in patient. Overwriting it with user-supplied values and using it without authorization allows a portal user to view and interact with another patient's demographics, invoices, and payment history—horizontal privilege escalation and IDOR. Version 8.0.0 contains a fix for the issue.
Title OpenEMR's Portal Payment Endpoint Trusts User-Controlled pid
Weaknesses CWE-639
References
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-02-27T18:27:59.160Z

Reserved: 2026-01-29T15:39:11.821Z

Link: CVE-2026-25147

cve-icon Vulnrichment

Updated: 2026-02-27T18:27:55.498Z

cve-icon NVD

Status : Analyzed

Published: 2026-02-27T17:16:30.933

Modified: 2026-03-03T19:10:32.100

Link: CVE-2026-25147

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-16T15:30:06Z

Weaknesses