CVE-2026-40509CWE-352csrf

CVE-2026-40509

Medium · published August 19, 2026

CVSS v3.1
4.3
EPSS
0%
Percentile
8.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
CVSS v4.0
5.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
EPSS
0.00190 · 8.2th percentile
Weakness
CWE-352 · Cross-Site Request Forgery (CSRF)
Published
2026-08-19T19:17Z
References (4)
https://github.com/openemr/openemr/commit/f760adc7bddaf9d118e1a0d40590e686783ed21b · [email protected]https://github.com/openemr/openemr/releases/tag/v8_3_0 · [email protected]https://github.com/openemr/openemr/security/advisories/GHSA-wffp-pj5h-xqwp · [email protected]https://www.vulncheck.com/advisories/openemr-csrf-via-dicom-viewer-web-path-parameter · [email protected]
EPSS history
Timeline
  • 19 AUG 14:53Z
    OpenEMR < 8.3.0 CSRF via DICOM Viewer web_path Parameter
    cvelistv5