CVE-2020-36243

Name: CVE-2020-36243
Creator: NVD / NIST
Published: 2021-02-07T20:15:12.437+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 64.14%

Last modified Jun 17, 2026

CVE-2020-36243 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. The Patient Portal of OpenEMR 5.0.2.1 is affected by a Command Injection vulnerability in /interface/main/backup.php. To exploit the vulnerability, an authenticated attacker can send a POST request that executes arbitrary OS commands via shell metacharacters.. EPSS estimates a 64.14% chance of exploitation in the next 30 days.

Description

The Patient Portal of OpenEMR 5.0.2.1 is affected by a Command Injection vulnerability in /interface/main/backup.php. To exploit the vulnerability, an authenticated attacker can send a POST request that executes arbitrary OS commands via shell metacharacters.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

64.14%

99.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-78

Affected Software

Vendor	Product	Versions
Open-Emr	Openemr	5.0.2.1

References

https://blog.sonarsource.com/openemr-5-0-2-1-command-injection-vulnerabilityExploit, Third Party Advisory
https://community.open-emr.org/t/openemr-5-0-2-patch-5-has-been-released/15431Patch, Release Notes, Vendor Advisory
https://community.sonarsource.com/t/openemr-5-0-2-1-command-injection-vulnerability-puts-health-records-at-risk/33592Patch, Vendor Advisory
https://www.open-emr.org/wiki/index.php/OpenEMR_PatchesPatch, Vendor Advisory
https://blog.sonarsource.com/openemr-5-0-2-1-command-injection-vulnerabilityExploit, Third Party Advisory
https://community.open-emr.org/t/openemr-5-0-2-patch-5-has-been-released/15431Patch, Release Notes, Vendor Advisory
https://community.sonarsource.com/t/openemr-5-0-2-1-command-injection-vulnerability-puts-health-records-at-risk/33592Patch, Vendor Advisory
https://www.open-emr.org/wiki/index.php/OpenEMR_PatchesPatch, Vendor Advisory

Timeline

Published: Feb 7, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-36243?

How severe is CVE-2020-36243?

CVE-2020-36243 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 64.14% probability of exploitation in the next 30 days.

How do I fix CVE-2020-36243?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-36243?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST