{"id":"CVE-2026-124453","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-124453","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.…","details":"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 in a JSON POST request to another patient's PID, altering that patient's portal settings such as the portal theme.","published":"2026-11-08T14:18:12.790","modified":"2026-11-08T14:18:12.790","cvss":{"score":7.1,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://github.com/openemr/openemr/security/advisories/GHSA-rrw3-g25h-x68h"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/openemr-before-8.3.0-idor-in-portal-patient-settings-via-persist-php"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-11-08T14:18:12.790"}}