RCE in Open-Emr Openemr
CVE-2026-39932
OpenEMR through 8.2.0 contains a remote code execution vulnerability in the document category tree component (library/classes/Tree.class.php) that allows authenticated administrators to execute arbitrary operating system commands by injecting PHP payloads into the categories database table. Attackers can chain arbitrary SQL execution to alter the id column type to VARCHAR and insert a malicious PHP payload, which is then executed via an unsanitized eval() call whenever any page instantiates CategoryTree, including unauthenticated and low-privilege pages, resulting in command execution as the web server user.
EPSS: 0.037 (89.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Open-emr Openemr
- Openemr — versions 0
Weakness classification (CWE)
References
- disclosure@vulncheck.com (Exploit, technical-description, Third Party Advisory, exploit)
- disclosure@vulncheck.com (Exploit, Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-39932?
- CVE-2026-39932 is a critical-severity vulnerability in Open-Emr Openemr, classified under Eval Injection. CVSS score: 9.1/10. Published 2026-08-03.
- How severe is CVE-2026-39932?
- Critical severity. CVSS v3 base score is 9.1 out of 10.