CVE-2026-124476 OpenEMR before 8.3.0 IDOR via form_pid in portal/lib/paylib.php
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-124476?
CVE-2026-124476 is a high-severity vulnerability in openemr, published on 8 Nov 2026.
Official 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.
Weakness: CWE-639
Which versions are affected by CVE-2026-124476?
How do I fix CVE-2026-124476?
No fix has been published for CVE-2026-124476 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-124476 being exploited?
There is no known exploitation of CVE-2026-124476 in the wild and no public exploit code.
Sources
Also known as GHSA-c9wg-vrr9-65wj, GHSA-m965-q963-p5wc.