{"id":"CVE-2026-124453","title":"OpenEMR before 8.3.0 IDOR in Portal Patient Settings via persist.php","summary":"OpenEMR before 8.3.0 contains an insecure direct object reference vulnerability in portal/lib/persist.php that allows authenticated portal patients to write settings for other patients. Attackers can modify the setting_patient parameter …","severity":"high","cvss":7.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/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":"2026-11-08T13:15:43.764Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-124453","references":[{"url":"https://github.com/openemr/openemr/security/advisories/GHSA-rrw3-g25h-x68h","label":"GitHub Security Advisory (GHSA-rrw3-g25h-x68h)"},{"url":"https://www.vulncheck.com/advisories/openemr-before-8.3.0-idor-in-portal-patient-settings-via-persist-php","label":"VulnCheck Advisory: OpenEMR before 8.3.0 IDOR in Portal Patient Settings via persist.php"}],"tags":["cve.org"],"ingestedAt":"2026-11-08T13:50:34.972Z","slug":"CVE-2026-124453","body":"## Overview\n\nOpenEMR before 8.3.0 contains an insecure direct object reference vulnerability in portal/lib/persist.php that allows authenticated portal patients to write settings for other patients. Attackers can modify the setting_patient parameter in a JSON POST request to another patient's PID, altering that patient's portal settings such as the portal theme.\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":"twilight","depthScore":39,"depthScoreParts":{"impact":39.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}