CVE-2026-33934
Discovered by AISLEPUBLISHEDCWE-639CWE-862
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.
CVSS Base Scores
CVSS v3.1(Primary)
4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Affected Products
| Vendor | Product | Version | Status |
|---|---|---|---|
| openemr | openemr | < 8.0.0.3 | affected |