CVE-2026-33911

MEDIUM

5.4

Description

OpenEMR is a free and open source electronic health records and medical practice management application. Prior to version 8.0.0.3, the POST parameter `title` is reflected back in a JSON response built with `json_encode()`. Because the response is served with a `text/html` Content-Type, the browser interprets injected HTML/script tags rather than treating the output as JSON. An authenticated attacker can craft a request that executes arbitrary JavaScript in a victim's session. Version 8.0.0.3 contains a fix.

CVE Details

CVSS v3.1 Score5.4

SeverityMEDIUM

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionREQUIRED

Published3/25/2026

Last Modified3/26/2026

Sourcenvd

Honeypot Sightings0

Affected Products

open-emr:openemr

Weaknesses (CWE)

CWE-79

References

https://github.com/openemr/openemr/commit/64e8befa0a49f85dd5e2a85c91f3f8b9e565896f(security-advisories@github.com)

https://github.com/openemr/openemr/releases/tag/v8_0_0_3(security-advisories@github.com)

https://github.com/openemr/openemr/security/advisories/GHSA-wwhf-6cvc-6766(security-advisories@github.com)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.