What’s Vulnerable › Vulnerabilities

CVE-2026-33931: OpenEMR has IDOR in Portal Payment Page that Allows Cross-Patient Record Access

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-26 · updated 2026-06-17
• Weakness: CWE-639

Description

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.

Affected products

• openemr: before 8.0.0.3 — fixed in 8.0.0.3

How to fix

Upgrade to a fixed version: openemr 8.0.0.3. Check the vendor advisory for mitigations.

References

• https://github.com/openemr/openemr/commit/7bf30e0ec5587f80c19094d58df09d46ac328806
• https://github.com/openemr/openemr/releases/tag/v8_0_0_3
• https://github.com/openemr/openemr/security/advisories/GHSA-hf37-5rp9-j27j

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