Missing Authorization in OpenEMR - #VU158867
Published: November 3, 2026
Vulnerability identifier: #VU158867
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-862
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose patient clinical and demographic information and initiate unauthorized eRx synchronization state changes.
The vulnerability exists due to missing authorization checks in OpenEMR's Ensora eRx entry point when processing requests for a selected patient. A remote user can directly request /interface/eRx.php without patients/rx permission to retrieve patient information embedded in the launch page, submit it to the configured vendor, and trigger synchronization updates.
Exploitation requires Ensora eRx to be enabled and configured.
Affected software
OpenEMR
Remediation
Install security update from vendor's website.
OpenEMR - update to 8.5.0