Is CVE-2026-33918 actively exploited?

No active exploitation of CVE-2026-33918 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-33918 be exploited remotely?

Yes. CVE-2026-33918 is exploitable remotely over the network (CVSS attack vector: Network).

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

CVE-2026-33918 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2026-33918

CWE-862Published: March 26, 2026· Updated: Mar 26, 2026

8.8

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:9.4th

Official 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.

NVD Source

Technical Analysis

CVE-2026-33918 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.