CVE-2026-40509
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
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| openemr | openemr | 0 < 8.3.0 | affected |
Weaknesses
- CWE-352: Cross-Site Request Forgery (CSRF)
References
- https://github.com/openemr/openemr/security/advisories/GHSA-wffp-pj5h-xqwp
- https://github.com/openemr/openemr/releases/tag/v8_3_0
- https://github.com/openemr/openemr/commit/f760adc7bddaf9d118e1a0d40590e686783ed21b
- https://www.vulncheck.com/advisories/openemr-csrf-via-dicom-viewer-web-path-parameter
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