{"id":"CVE-2026-124455","published":"2026-11-08T14:18:12.943","lastModified":"2026-11-10T21:46:24.960","description":"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 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.","cvssScore":6.5,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","cwes":["CWE-639"],"vendors":[],"products":[],"references":[{"url":"https://github.com/openemr/openemr/security/advisories/GHSA-hvp7-q2hp-6j6g","tags":[]},{"url":"https://www.vulncheck.com/advisories/openemr-before-8.3.0-idor-via-portal-onsitedocument-pid-equals-mass-assignment","tags":[]}],"exploitRefs":[{"url":"https://github.com/openemr/openemr/security/advisories/GHSA-hvp7-q2hp-6j6g","tags":[]}],"hasPoc":true,"ai":null}