🛡️ CVE-2026-33931 — openemr

🟡 CVSS 6.5 — Medium ⚠️ Exploit Public CWE-639 NVD
6.5
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity none, availability none.

Weakness class

CVE-2026-33931 is classified as CWE-639: Authorization Bypass Through User-Controlled Key. An object is selected by an identifier from the request without checking the caller owns it.

Affected software

CVE-2026-33931 is recorded against 1 package.

  • openemr (fixed in 8.0.0.3)

Timeline and source

Published on 26 March 2026 and last revised on 17 June 2026. A public exploit is known to exist, which raises the urgency of patching considerably. A vendor advisory or fix has been published. Record sourced from NVD.

References

github.com
github.com
github.com

Details

Severity MEDIUM
CVSS Score 6.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE CWE-639
Public Exploit ⚠️ Yes
Source NVD
Published 2026-03-26
Updated 2026-08-11
Modified 2026-06-17

Affected Packages

Software From version Fixed in
openemr — 8.0.0.3

Similar Threats

Exploit Protection

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