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CVE-2021-39217

24
FAUCET Score

CVE-2021-39217 is a critical vulnerability affecting OpenMage LTS e-commerce platforms prior to versions 19.4.22 and 20.0.19. This flaw allows authenticated administrative users to execute arbitrary commands through block methods within the Custom Layout feature. With a CVSS score of 7.2 (High), it presents a significant risk of complete compromise (confidentiality, integrity, availability) due to its network-based attack vector and low attack complexity. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 19.4.22CPE matchmatch criteria
cpe:2.3:a:openmage:magento:*:*:*:*:lts:*:*:*
>= 20.0.0, < 20.0.19CPE matchmatch criteria
cpe:2.3:a:openmage:magento:*:*:*:*:lts:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.2HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.2
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.32%
Probability of exploitation in next 30 days
EPSS Percentile
67.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0132 is in the 59th percentile among its peer group of 5,537 CVEs.

Social Chatter

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

Patch Available

Vendor Patches (3)

composerpatch availablevia ghsa
Product: openmage/magento-ltsFixed in: 19.4.22
composerpatch availablevia ghsa
Product: openmage/magento-ltsFixed in: 20.0.19
github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

composerGHSA-c9q3-r4rv-mjm7high

Fix for arbitrary command execution in custom layout update through blocks

Jan 27, 2023

References

github.com / OpenMage/magento-lts/commit/289bd4b4f53622138e3e5c2d2cef7502d780086f
PatchThird Party Advisory
github.com / OpenMage/magento-lts/releases/tag/v19.4.22
Release NotesThird Party Advisory
github.com / OpenMage/magento-lts/releases/tag/v20.0.19
Release NotesThird Party Advisory
github.com / OpenMage/magento-lts/security/advisories/GHSA-c9q3-r4rv-mjm7
Third Party Advisory