CVE-2026-124481 | BDVDB-2026-402036 Detail
openemropenemr
Description#
OpenEMR before 8.4.0 contains an improper authorization vulnerability in Rainforest patient portal payments that trusts browser-supplied patientId, encounter, and amount values instead of deriving them from the portal session. Authenticated portal patients can tamper with JSON sent to portal_payment.rainforest.php so the payin.authorized webhook writes forged ar_activity credits to other patients' encounters exceeding the amount actually paid.
Impact#
Per CVSS v3.1: confidentiality impact none, integrity impact high, availability impact none. Attack vector: network.
Weaknesses#
- CWE-639 Authorization Bypass Through User-Controlled Key
References#
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.