CVE-2026-33931Public exploitNetwork attack vector

Cross-patient payment disclosure via unscoped record lookup

Published Mar 25, 2026 · Updated Mar 25, 2026

Authorization bypass in OpenEMR before 8.0.0.3 allows remote authenticated users to read other patients' payment records. portal_payment.php passes the user-controlled recid to getPortalAuditRec(), which selects onsite_portal_activity by id without a patient_id filter. Any patient portal account can enumerate sequential record IDs, exposing invoice and billing PHI plus card metadata, including CVV for InHouse payments.

CVSS severity6.5
Medium
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in OpenEMR before 8.0.0.3 allows remote authenticated users to read other patients' payment records. portal_payment.php passes the user-controlled recid to getPortalAuditRec(), which selects onsite_portal_activity by id without a patient_id filter. Any patient portal account can enumerate sequential record IDs, exposing invoice and billing PHI plus card metadata, including CVV for InHouse payments.

The record

CVE
CVE-2026-33931
Published
Mar 25, 2026
Updated
Mar 25, 2026
Vendor
OpenEMR Foundation
Product
OpenEMR
Classifications
CWE-639, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 8.0.0.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OpenEMR Foundation · OpenEMRversion=< 8.0.0.3

Published CVSS scores

6.5GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1213Data from Information Repositories

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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