CVE-2026-33933

Name: CVE-2026-33933
Creator: NVD / NIST
Published: 2026-03-26T00:16:40.12+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.27%

Last modified Jun 17, 2026

CVE-2026-33933 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. OpenEMR is a free and open source electronic health records and medical practice management application. Starting in version 7.0.2.1 and prior to version 8.0.0.3, a reflected cross-site scripting (XSS) vulnerability in the custom template editor allows an attacker to execute arbitrary JavaScript in an authenticated staff member's browser session by sending them a crafted URL. EPSS estimates a 0.27% chance of exploitation in the next 30 days.

Description

OpenEMR is a free and open source electronic health records and medical practice management application. Starting in version 7.0.2.1 and prior to version 8.0.0.3, a reflected cross-site scripting (XSS) vulnerability in the custom template editor allows an attacker to execute arbitrary JavaScript in an authenticated staff member's browser session by sending them a crafted URL. The attacker does not need an OpenEMR account. Version 8.0.0.3 patches the issue.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

0.27%

18.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Open-Emr	Openemr	>= 7.0.2.1, < 8.0.0.3

References

https://github.com/openemr/openemr/commit/d5c8d49ef19983472b2d7db0dbebd2dac9d6a200Patch
https://github.com/openemr/openemr/commit/de9b6eb0da574430e8223c014cf4a05b0adc29d8Patch
https://github.com/openemr/openemr/releases/tag/v8_0_0_3Product
https://github.com/openemr/openemr/security/advisories/GHSA-9qh7-cfq4-j7c3Exploit, Vendor Advisory
https://github.com/openemr/openemr/security/advisories/GHSA-9qh7-cfq4-j7c3Exploit, Vendor Advisory

Timeline

Published: Mar 26, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-33933?

How severe is CVE-2026-33933?

CVE-2026-33933 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.27% probability of exploitation in the next 30 days.

How do I fix CVE-2026-33933?

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-2026-33933?

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

Scan your code now

Source: NVD / NIST