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7.1
OpenEMR (8.0.0 and earlier) allows accessing other patients' data
CVE-2026-25147
Summary
An unauthorized user with access to OpenEMR's portal can view another patient's personal and financial information. This can happen if you are using OpenEMR version 8.0.0 or earlier. To fix this, upgrade to version 8.0.0 or later.
What to do
No fix is available yet. Check with your software vendor for updates.
Affected software
| Vendor | Product | Affected versions | Fix available |
|---|---|---|---|
| open-emr | openemr | <= 8.0.0 | – |
Original title
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 ...
Original 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.
nvd CVSS3.1
7.1
Vulnerability type
CWE-639
Authorization Bypass Through User-Controlled Key
Published: 27 Feb 2026 · Updated: 13 Mar 2026 · First seen: 6 Mar 2026