Auth bypass in Open-Emr Openemr
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (23.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 23.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001
Affected products
- Open-Emr Openemr
- Openemr — versions < 8.0.0.2
Weakness classification (CWE)
References
- github.com/openemr/openemr/security/advisories/GHSA-r973-h5cq-35rc (Exploit, Vendor Advisory)
- github.com/openemr/openemr/commit/edb65936e259b2625e8eea4628316c4577cb2a11 (Patch)
Frequently asked questions
- What is CVE-2026-33305?
- CVE-2026-33305 is a medium-severity vulnerability in Open-Emr Openemr, classified under CWE-696. CVSS score: 5.4/10. Published 2026-03-19.
- How severe is CVE-2026-33305?
- Medium severity. CVSS v3 base score is 5.4 out of 10.