{"id":"CVE-2026-40509","aliases":["EUVD-2026-62510","GHSA-c2ph-gr8x-j747","GHSA-wffp-pj5h-xqwp"],"status":"published","title":"OpenEMR \u003c 8.3.0 CSRF via DICOM Viewer web_path Parameter","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.","severity":{"version":"4.0","score":5.3,"vector":"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","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.0019,"percentile":0.08668,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-352"],"published":"2026-08-19T14:53:21Z","modified":"2026-10-29T02:30:55Z","products":[{"vendor":"open-emr","product":"openemr"},{"vendor":"openemr","product":"openemr"}],"references":[{"url":"https://github.com/openemr/openemr/security/advisories/GHSA-wffp-pj5h-xqwp","tags":["vendor-advisory","advisory"]},{"url":"https://github.com/openemr/openemr/releases/tag/v8_3_0","tags":["release-notes","advisory"]},{"url":"https://github.com/openemr/openemr/commit/f760adc7bddaf9d118e1a0d40590e686783ed21b","tags":["patch","fix"]},{"url":"https://www.vulncheck.com/advisories/openemr-csrf-via-dicom-viewer-web-path-parameter","tags":["third-party-advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40509","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-c2ph-gr8x-j747"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40509.json","tags":["advisory"]},{"url":"https://github.com/openemr/openemr","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-40509","title":"OpenEMR \u003c 8.3.0 CSRF via DICOM Viewer web_path Parameter","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.","status":"published","published":"2026-08-19T14:53:21.612Z","modified":"2026-10-01T15:19:59.152Z","cvss":[{"version":"4.0","score":5.3,"vector":"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","level":"medium","assessor":"cna"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T13:43:11.445168Z"}],"euvd":[{"id":"EUVD-2026-62510","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.","status":"published","published":"2026-08-19T14:53:21Z","modified":"2026-10-01T15:19:59Z","cvss":[{"version":"4.0","score":5.3,"vector":"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","level":"medium"}],"updated_at":"2026-11-02T17:27:45.358437Z"}],"ghsa":[{"id":"GHSA-c2ph-gr8x-j747","title":"OpenEMR before 8.3.0 contains a cross-site request forgery vulnerability in the DICOM viewer. The...","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.","status":"published","published":"2026-08-19T15:32:38Z","modified":"2026-08-19T15:32:47Z","cvss":[{"version":"4.0","score":5.3,"vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T15:10:39.892418Z"}],"nvd":[{"id":"CVE-2026-40509","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.","status":"published","published":"2026-08-19T15:17:01.867Z","modified":"2026-10-27T13:10:00.36Z","cvss":[{"version":"4.0","score":5.3,"vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T14:12:39.962615Z"}],"osv":[{"id":"CVE-2026-40509","title":"OpenEMR \u003c 8.3.0 CSRF via DICOM Viewer web_path Parameter","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.","status":"published","published":"2026-08-19T14:53:21.612Z","modified":"2026-10-29T02:30:55.905268182Z","cvss":[{"version":"4.0","score":5.3,"vector":"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","level":"medium"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T15:45:03.424067Z"}]}}