Cross-site scripting in OpenEMR - CVE-2026-33932
Published: April 23, 2026
Vulnerability identifier: #VU127359
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-2026-33932
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: OpenEMR
Affected software:
OpenEMR
OpenEMR
Detailed vulnerability description
The vulnerability allows a remote user to execute arbitrary JavaScript in a clinician's browser session.
The vulnerability exists due to improper neutralization of input during web page generation in the CCDA document preview XSL transformation for linkHtml attributes when processing a crafted CCDA document. A remote user can upload or send a crafted CCDA document containing javascript: URIs or event handler attributes to execute arbitrary JavaScript in a clinician's browser session.
User interaction is required when the document is previewed and the rendered link is clicked.
How to mitigate CVE-2026-33932
Install security update from vendor's website.