{"id":"CVE-2026-124455","title":"OpenEMR before 8.3.0 IDOR via Portal OnsiteDocument Pid_Equals Mass-Assignment","summary":"OpenEMR before 8.3.0 contains an insecure direct object reference vulnerability in OnsiteDocumentController::Query() that allows authenticated portal patients to read other patients' documents by overriding Pid_Equals criteria. Attackers…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","cvssSource":"cna","cwe":["CWE-639"],"vendor":"openemr","product":"openemr","affected":["openemr < 8.3.0"],"published":"2026-11-08","updated":"2026-11-08","sourceUpdated":"2026-11-08T13:15:44.448Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-124455","references":[{"url":"https://github.com/openemr/openemr/security/advisories/GHSA-hvp7-q2hp-6j6g","label":"GitHub Security Advisory (GHSA-hvp7-q2hp-6j6g)"},{"url":"https://www.vulncheck.com/advisories/openemr-before-8.3.0-idor-via-portal-onsitedocument-pid-equals-mass-assignment","label":"VulnCheck Advisory: OpenEMR before 8.3.0 IDOR via Portal OnsiteDocument Pid_Equals Mass-Assignment"}],"tags":["cve.org"],"ingestedAt":"2026-11-08T13:50:34.971Z","slug":"CVE-2026-124455","body":"## Overview\n\nOpenEMR before 8.3.0 contains an insecure direct object reference vulnerability in OnsiteDocumentController::Query() that allows authenticated portal patients to read other patients' documents by overriding Pid_Equals criteria. Attackers can supply Pid_Equals, Pid_GreaterThan, or Pid_In request parameters to the onsitedocuments API to retrieve signed consent forms, signatures, and PHI of any patient.\n\n## Affected\n\n- `openemr < 8.3.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}