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MEDIUM severity

CVE-2021-28567 — community-edition

MEDIUMFix: magento/magento2@1bd5cb8

CVE-2021-28567 is a medium-severity (CVSS 6.5) CWE-285 vulnerability in magento/community-edition. A fix is available for magento/community-edition — see the affected versions and patch details below.

Magento Improper Authorization vulnerability in the customers module

Also known asBIT-magento-2021-28567GHSA-cc3w-r3w8-hfh7
Published
Updated
Affected
3 pkgs
Patched
2 / 3
Exploits
None indexed
Exploitation data as of Nov 2, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
0.8%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs57th percentile — riskier than 57% of all scored CVEsHighest risk
0.00%0.44%0.88%1.32%0.1%0.8%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

3 pkgs affected
🐘magento/community-edition🐘magento/community-edition🐘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 2.4.2 (and earlier), 2.4.1-p1 (and earlier) and 2.3.6-p1 (and earlier) are vulnerable to an Improper Authorization vulnerability in the customers module. Successful exploitation could allow a low-privileged user to modify customer data. Access to the admin console is required for successful exploitation.

Affected Packages

3 total 2 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistmagento/community-edition≥ 2.4.0&&< 2.4.2-p12.4.2-p1composer require magento/community-edition:^2.4.2-p1
🐘Packagistmagento/community-editionall versions2.3.7composer require magento/community-edition:^2.3.7
🐘Packagistmagento/project-community-editionall versionsNo fix

Affected Products

1 product · 2 configurations
Application
magentomagento
≤ 2.4.2
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 2.4.2-p1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2021-28567 is resolved across your whole dependency graph.

  3. Workarounds

    Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.

Frequently Asked Questions

Magento versions 2.4.2 (and earlier), 2.4.1-p1 (and earlier) and 2.3.6-p1 (and earlier) are vulnerable to an Improper Authorization vulnerability in the customers module. Successful exploitation could allow a low-privileged user to modify customer data. Access to the admin console is required for successful exploitation.
O3 Security · Impact-Aware SCA

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CVE-2021-28567: community-edition — Fixed in 2.4.2-p1