Authorization bypass through user-controlled key in OpenEMR - CVE-2026-25745
Published: April 23, 2026
Vulnerability identifier: #VU127321
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-25745
CWE-ID: CWE-639
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 modify any patient's messages or notes.
The vulnerability exists due to improper access control in the message/patient note update handler when handling update requests for message or note IDs. A remote user can send a crafted update request with another patient's message or note ID to modify any patient's messages or notes.
The issue affects the REST or AJAX update path and does not require user interaction.
How to mitigate CVE-2026-25745
Install security update from vendor's website.