Authorization Bypass in OpenEMR Affects Medical Practice Management
CVE-2026-33304

6.5MEDIUM

Key Information:

Vendor

Openemr

Status
Openemr
Vendor
CVE Published:
19 March 2026

What is CVE-2026-33304?

OpenEMR is an open-source electronic health records application that, before version 8.0.0.2, was susceptible to an authorization bypass in its dated reminders log. This vulnerability allowed any authenticated non-admin user to access reminder messages intended for other users. By manipulating the sentTo[] and sentBy[] parameters in a GET request, attackers could retrieve sensitive information, including patient names and free-text message content. The issue has been resolved in version 8.0.0.2.

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Affected Version(s)

openemr < 8.0.0.2

References

https://github.com/openemr/openemr/security/advisories/GH...
x_refsource_CONFIRM
https://github.com/openemr/openemr/commit/21dee7658a5f3b1...
x_refsource_MISC

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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