{"id":"CVE-2026-124476","published":"2026-11-08T14:18:16.463","lastModified":"2026-11-10T21:46:40.963","description":"OpenEMR before 8.3.0 contains an insecure direct object reference in portal/lib/paylib.php, which writes the request-supplied form_pid (or the patient_id_cc value in Sphere data) to onsite_portal_activity without checking it against the session patient. Authenticated portal patients can submit portal-save, review-save, AuthorizeNet, Stripe, or Sphere requests to insert or modify forged payment-audit records in other patients' billing records.","cvssScore":6.5,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","cwes":["CWE-639"],"vendors":[],"products":[],"references":[{"url":"https://github.com/openemr/openemr/security/advisories/GHSA-c9wg-vrr9-65wj","tags":[]},{"url":"https://www.vulncheck.com/advisories/openemr-before-8.3.0-idor-via-form-pid-in-portal-lib-paylib-php","tags":[]}],"exploitRefs":[{"url":"https://github.com/openemr/openemr/security/advisories/GHSA-c9wg-vrr9-65wj","tags":[]}],"hasPoc":true,"ai":null}