Description

OpenEMR is a free and open source electronic health records and medical practice management application. Versions prior to 8.0.0.3 have a missing authorization check in `portal/sign/lib/show-signature.php` that allows any authenticated patient portal user to retrieve the drawn signature image of any staff member by supplying an arbitrary `user` value in the POST body. The companion write endpoint (`save-signature.php`) was already hardened against this same issue, but the read endpoint was not updated to match. Version 8.0.0.3 patches the issue.

INFO

Published Date :

2026-03-25T23:41:51.601Z

Last Modified :

2026-03-26T18:09:35.818Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-33934 vulnerability.

Vendors Products
Open-emr
  • Openemr
Openemr
  • Openemr

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact