CVE-2026-33346: Open-EMR Openemr

High severity, CVSS 8.7. EPSS: 1% chance of exploitation in the next 30 days.

OpenEMR is a free and open source electronic health records and medical practice management application. Prior to 8.0.0.2, a stored cross-site scripting (XSS) vulnerability in the patient portal payment flow allows a patient portal user to persist arbitrary JavaScript that executes in the browser of a staff member who reviews the payment submission. The payload is stored via `portal/lib/paylib.php` and rendered without escaping in `portal/portal_payment.php`. Version 8.0.0.2 fixes the issue.

Affected products

• Open-EMR Openemr: before 8.0.0.2 (fixed in 8.0.0.2)

Published 2026-03-19. Last modified 2026-06-17.