CVE-2026-33346

Name: CVE-2026-33346
Creator: NVD / NIST
Published: 2026-03-19T21:17:12.18+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.7/10EPSS 0.32%

Last modified Jun 17, 2026

CVE-2026-33346 is a high-severity vulnerability rated 8.7/10 on the CVSS scale. 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. EPSS estimates a 0.32% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

8.7/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

EPSS Probability

0.32%

24.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Open-Emr	Openemr	< 8.0.0.2

References

https://github.com/openemr/openemr/commit/6e9e1566d6e271a6d839614674b887e3a73d7da1Patch
https://github.com/openemr/openemr/security/advisories/GHSA-qvf6-6xc6-9qv7Exploit, Vendor Advisory
https://github.com/openemr/openemr/security/advisories/GHSA-qvf6-6xc6-9qv7Exploit, Vendor Advisory

Timeline

Published: Mar 19, 2026
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2026-33346?

How severe is CVE-2026-33346?

CVE-2026-33346 has a CVSS score of 8.7/10 (HIGH severity). The EPSS model estimates a 0.32% probability of exploitation in the next 30 days.

How do I fix CVE-2026-33346?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-33346?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST