Remote Code Execution Vulnerability in OpenEMR by OpenEMR
CVE-2026-39932

9.4CRITICAL

Key Information:

Vendor

Openemr

Status
Openemr
Vendor
CVE Published:
3 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-39932?

OpenEMR versions prior to 8.2.0 are susceptible to a remote code execution vulnerability involving the document category tree component. Authenticated administrators can exploit this flaw by injecting malicious PHP payloads into the categories database table. Attackers may manipulate the id column type to VARCHAR and insert crafted input that will be executed through an insecure eval() function whenever CategoryTree is invoked on any page, including those accessible to low-privilege users. This serious flaw could compromise the web server’s security, allowing unauthorized command execution under the server user context, posing significant risks if exploited.

Affected Version(s)

openemr 0 <= 8.2.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-39932 - Proof of Concept

References

https://jivasecurity.com/writeups/openemr-eval-rce-catego...
technical-descriptionexploit
https://www.vulncheck.com/advisories/openemr-remote-code-...
third-party-advisory

CVSS V4

Score:
9.4
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Jiva (JivaSecurity)
.