Vulnerability Report

CVE-2026-33305

Title: Authorization bypass in OpenEMR FaxSMS module

Other

Proof Of Concept

No public PoC currently indexed for CVE-2026-33305.

CWE Category CWE-696
Published Date Mar 19, 2026
Modified Date Mar 20, 2026
Exploit Status Not Found
Score 5.4 CVSS v3.1
Exploit Probability (EPSS)
0.21%

Vulnerability Summary

CVE-2026-33305: OpenEMR is a free and open source electronic health records and medical practice management application. Prior to 8.0.0.2, an authorization bypass in the optional FaxSMS module (`oe-module-faxsms`) allows any authenticated OpenEMR user to invoke controller methods — including `getNotificationLog()`, which returns patient appointment data (PHI) — regardless of whether they hold the required ACL permissions. The `AppDispatch` constructor dispatches user-controlled actions and exits the process before any calling code can enforce ACL checks. Version 8.0.0.2 fixes the issue.

Impacted Vendors

O
openemr 1
O
open-emr 1

Reference Links

https://github.com/openemr/openemr/commit/edb65936e259b2625e8eea4628316c4577cb2a11 https://github.com/openemr/openemr/security/advisories/GHSA-r973-h5cq-35rc
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
5.4
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-33305 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Affected Stack

No specific products linked.