{"id":"CVE-2026-124480","title":"OpenEMR before 8.4.0 Authorization Bypass via FHIR QuestionnaireResponse APICSRFTOKEN","summary":"OpenEMR before 8.4.0 contains an authorization bypass vulnerability that allows low-privileged authenticated users to read cross-patient FHIR QuestionnaireResponse data by sending the APICSRFTOKEN header. Attackers can reuse the session-…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","cwe":["CWE-862"],"vendor":"openemr","product":"openemr","affected":["openemr < 8.4.0"],"published":"2026-11-08","updated":"2026-11-08","sourceUpdated":"2026-11-08T13:16:00.035Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-124480","references":[{"url":"https://github.com/openemr/openemr/security/advisories/GHSA-5xf2-3h9x-f4m6","label":"GitHub Security Advisory (GHSA-5xf2-3h9x-f4m6)"},{"url":"https://www.vulncheck.com/advisories/openemr-before-8.4.0-authorization-bypass-via-fhir-questionnaireresponse-apicsrftoken","label":"VulnCheck Advisory: OpenEMR before 8.4.0 Authorization Bypass via FHIR QuestionnaireResponse APICSRFTOKEN"}],"tags":["cve.org"],"ingestedAt":"2026-11-08T13:50:34.963Z","slug":"CVE-2026-124480","body":"## Overview\n\nOpenEMR before 8.4.0 contains an authorization bypass vulnerability that allows low-privileged authenticated users to read cross-patient FHIR QuestionnaireResponse data by sending the APICSRFTOKEN header. Attackers can reuse the session-exposed api_csrf_token_js value to skip FHIR scope checks and call GET /fhir/QuestionnaireResponse, exfiltrating site-wide questionnaire answer PHI.\n\n## Affected\n\n- `openemr < 8.4.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}