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CVE-2020-36243

61
FAUCET Score

CVE-2020-36243 describes a critical command injection vulnerability in the Patient Portal of OpenEMR version 5.0.2.1, specifically within the /interface/main/backup.php component. This flaw allows an authenticated attacker to execute arbitrary operating system commands by sending a crafted POST request containing shell metacharacters. Rated with a CVSS score of 8.8 (High), the vulnerability is easily exploitable over the network with low attack complexity, potentially leading to complete compromise of confidentiality, integrity, and availability. While it has a high EPSS score indicating significant exploitability potential, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or notable community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
5.0.2.1CPE matchmatch criteria
cpe:2.3:a:open-emr:openemr:5.0.2.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
64.14%
Probability of exploitation in next 30 days
EPSS Percentile
99.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.6414 is in the 99th percentile among its peer group of 17,822 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

blog.sonarsource.com / openemr-5-0-2-1-command-injection-vulnerability
ExploitThird Party Advisory
community.open-emr.org / t/openemr-5-0-2-patch-5-has-been-released/15431
PatchRelease NotesVendor Advisory
community.sonarsource.com / t/openemr-5-0-2-1-command-injection-vulnerability-puts-health-records-at-risk/33592
PatchVendor Advisory
open-emr.org / wiki/index.php/OpenEMR_Patches
PatchVendor Advisory