Is CVE-2026-33918 actively exploited?

CVE-2026-33918 has no public evidence of in-the-wild exploitation as of 2026-03-26.

What is the CVSS score for CVE-2026-33918?

CVE-2026-33918 has a CVSS score of 7.6 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L.

How do I patch CVE-2026-33918?

Patch guidance is available from open-emr security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-33918.

Fix CVE-2026-33918 - HIGH open-emr openemr

Description

OpenEMR is a free and open source electronic health records and medical practice management application. Prior to version 8.0.0.3, the billing file-download endpoint `interface/billing/get_claim_file.php` only verifies that the caller has a valid session and CSRF token, but does not check any ACL permissions. This allows any authenticated OpenEMR user — regardless of whether they have billing privileges — to download and permanently delete electronic claim batch files containing protected health information (PHI). Version 8.0.0.3 patches the issue.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
Attack Vector: network
Complexity: low
Privileges: low
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: low
Availability: low
Weaknesses: CWE-862 · Missing Authorization

Metadata

Primary Vendor: OPEN-EMR
Published: 3/26/2026
Last Modified: 3/26/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

open-emr : openemr

Remediation Guidance

Executive Summary

Cite this page

CVE-2026-33918. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2026-33918

View on NIST NVD

CVE-2026-33918 vulnerability