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LOW severity

CVE-2021-28566 — community-edition

LOWFix: magento/magento2@1bd5cb8

CVE-2021-28566 is a low-severity (CVSS 2.7) Information Exposure vulnerability in magento/community-edition. A fix is available for magento/community-edition — see the affected versions and patch details below.

Magento Information Disclosure vulnerability

Also known asBIT-magento-2021-28566GHSA-w942-fw92-mqm2
Published
Updated
Affected
2 pkgs
Patched
2 / 2
Exploits
None indexed
Exploitation data as of Nov 9, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.4%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs73th percentile — riskier than 73% of all scored CVEsHighest risk
0.23%0.80%1.36%1.93%0.7%1.4%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

2 pkgs affected
🐘magento/community-edition🐘magento/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 Information Disclosure vulnerability when uploading a modified png file to a product image. Successful exploitation could lead to the disclosure of document root path by an unauthenticated attacker. Access to the admin console is required for successful exploitation.

Affected Packages

2 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-edition≥ 2.3.0&&< 2.3.72.3.7composer require magento/community-edition:^2.3.7

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-2021-28566 is resolved across your whole dependency graph.

  3. Workarounds

    Assume what was exposed is already known: rotate any credential, token or key that the affected component could return, restrict the endpoint to callers that genuinely need it, and strip sensitive fields from responses and error output at the boundary rather than relying on the client not to read them.

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 Information Disclosure vulnerability when uploading a modified png file to a product image. Successful exploitation could lead to the disclosure of document root path by an unauthenticated attacker. Access to the admin console is required for successful exploitation.
O3 Security · Impact-Aware SCA

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CVE-2021-28566: community — Fixed in 2.4.2-p1