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CVE-2026-33931

MEDIUM CVSS 3.1: 6.5 EPSS 0.04%
Updated Mar 26, 2026
Open-Emr
Parameter Value
CVSS 6.5 (MEDIUM)
Affected Versions before 8.0.0.3
Fixed In 8.0.0.3
Type CWE-639 (Authorization Bypass)
Vendor Open-Emr
Public PoC No

OpenEMR is a free and open source electronic health records and medical practice management application. Prior to version 8.0.0.3, an Insecure Direct Object Reference (IDOR) vulnerability in the patient portal payment page allows any authenticated portal patient to access other patients' payment records — including invoice/billing data (PHI) and payment card metadata — by manipulating the `recid` query parameter in `portal/portal_payment.php`. Version 8.0.0.3 patches the issue.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption

CVSS Vector v3.1

Weakness Type (CWE)

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Open-Emr Openemr
cpe:2.3:a:open-emr:openemr:*:*:*:*:*:*:*:*
8.0.0.3