CVE-2026-40509 — OpenEMR < 8.3.0 CSRF via DICOM Viewer web_path Parameter
OpenEMR before 8.3.0 contains a cross-site request forgery vulnerability in the DICOM viewer. The web_path GET parameter in the DICOM viewer page is embedded unsanitized as a UR…
Published: 2026-08-19 · CVSS: 5.3 · CVSS 4.0
OpenEMR before 8.3.0 contains a cross-site request forgery vulnerability in the DICOM viewer. The web_path GET parameter in the DICOM viewer page is embedded unsanitized as a URL without validation against expected path formats. An attacker can craft a URL that causes an authenticated user with Patients - Documents permissions to make authenticated requests to arbitrary OpenEMR endpoints, enabling forced logout and other state-changing actions.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7