High severity · published Mar 25, 2026
CVE-2026-33918
OpenEMR Missing Authorization on Claim File Download Endpoint
8.8
CVSS
0.3%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 17% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
openemr · openemr
< 8.0.0.3 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-33918
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-33918
Patch
https://github.com/openemr/openemr/commit/f6d98d0102df0a8f131be560d9208fb65fba6188
Product
https://github.com/openemr/openemr/releases/tag/v8_0_0_3
Vendor Advisory
https://github.com/openemr/openemr/security/advisories/GHSA-g3p5-5grq-m65m
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