{"apiVersion":"1.0","identifier":"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.","publishedAt":"2026-08-19T15:17:01","lastModifiedAt":"2026-08-20T16:17:23","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-40509","cvssScore":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","epssProbability":0.00128,"riskScore":0.43,"affectedProduct":"OpenEMR","affectedVersions":"<8.3.0","vulnerabilityType":"Web app","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-40509","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-40509","en":"https://www.redsauce.net/en/cves/CVE-2026-40509","fr":"https://www.redsauce.net/fr/cves/CVE-2026-40509","pt":"https://www.redsauce.net/pt/cves/CVE-2026-40509","de":"https://www.redsauce.net/de/cves/CVE-2026-40509","sk":"https://www.redsauce.net/sk/cves/CVE-2026-40509","el":"https://www.redsauce.net/el/cves/CVE-2026-40509"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-40509"}}