Cross-site scripting in OpenEMR - CVE-2026-33911

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU127349

Cross-site scripting in OpenEMR - CVE-2026-33911

Published: April 23, 2026


Vulnerability identifier: #VU127349
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-33911
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: OpenEMR
Affected software:
OpenEMR

Detailed vulnerability description

The vulnerability allows a remote user to execute arbitrary JavaScript in a victim's session.

The vulnerability exists due to cross-site scripting in graphs.php when handling a crafted POST request through the title parameter. A remote user can send a specially crafted request to execute arbitrary JavaScript in a victim's session.

The issue occurs because the reflected input is returned in a response served with a text/html content type, causing the browser to interpret injected HTML or script content.


How to mitigate CVE-2026-33911

Install security update from vendor's website.

Sources