Improper access control in OpenEMR - #VU158856
Published: November 3, 2026
Vulnerability identifier: #VU158856
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose patient and laboratory-order information and modify procedure omission flags across configured patient-squad access restrictions.
The vulnerability exists due to improper access control in interface/orders/order_manifest.php when resolving a supplied orderid without enforcing the target patient's configured squad restrictions. A remote user can request a restricted patient's global order ID using a patients/med=view session to read the patient's identity, clinical history, and procedure information, and submit omission selections to modify the restricted order.
The cross-squad access violation applies to deployments with sports squads configured.
Affected software
OpenEMR
Remediation
Install security update from vendor's website.
OpenEMR - update to 8.5.0