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CRITICAL severity

CVE-2020-9582 — community-edition

CRITICAL

CVE-2020-9582 is a critical-severity (CVSS 9.8) CWE-77 vulnerability in magento/community-edition. A fix is available for magento/community-edition — see the affected versions and patch details below.

Magento command injection vulnerability

Also known asBIT-magento-2020-9582GHSA-c3m4-hxv9-4mxj
Published
Updated
Affected
4 pkgs
Patched
3 / 4
Exploits
None indexed
Exploitation data as of Nov 4, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
5.7%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs93th percentile — riskier than 93% of all scored CVEsHighest risk
2.48%3.81%5.14%6.47%3.2%5.7%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

4 pkgs affected
🐘magento/community-edition🐘magento/community-edition🐘magento/core🐘magento/project-community-edition

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

Magento versions 2.3.4 and earlier, 2.2.11 and earlier (see note), 1.14.4.4 and earlier, and 1.9.4.4 and earlier have a command injection vulnerability. Successful exploitation could lead to arbitrary code execution.

Affected Packages

4 total 3 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistmagento/community-edition≥ 2.3.0&&< 2.3.4-p22.3.4-p2composer require magento/community-edition:^2.3.4-p2
🐘Packagistmagento/community-editionall versions2.2.12composer require magento/community-edition:^2.2.12
🐘Packagistmagento/coreall versions1.9.4.5composer require magento/core:^1.9.4.5
🐘Packagistmagento/project-community-editionall versionsNo fix

Affected Products

1 product · 6 configurations
Application
magentomagento
≥ 2.3.0 && ≤ 2.3.4
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for magento/community-edition, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update magento/community-edition to 2.3.4-p2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2020-9582 is resolved across your whole dependency graph.

  3. Workarounds

    Stop passing untrusted input into the interpreter or shell: call the affected binary with an argument array rather than a composed command string, reject anything outside a strict allowlist of expected values, and run the component under an account that cannot reach beyond the work it legitimately does.

Frequently Asked Questions

Magento versions 2.3.4 and earlier, 2.2.11 and earlier (see note), 1.14.4.4 and earlier, and 1.9.4.4 and earlier have a command injection vulnerability. Successful exploitation could lead to arbitrary code execution.
O3 Security · Impact-Aware SCA

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CVE-2020-9582: community-edition RCE — Fixed in 2.3.4-p2