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Medium · 4.3 CVE-2026-40509 EUVD-2026-62510GHSA-c2ph-gr8x-j747

OpenEMR < 8.3.0 CSRF via DICOM Viewer web_path Parameter

Published Aug 19, 2026 · Updated Oct 1, 2026 · Assigned by VulnCheck

Description

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.

Affected products

VendorProductAffectedFixed
openemr openemr < 8.3.0 8.3.0

References