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CVE-2021-21027: Magento cross-site request forgery (CSRF) vulnerability via the GraphQL API

May 24, 2022 (updated February 10, 2025)

Magento versions 2.4.1 (and earlier), 2.4.0-p1 (and earlier) and 2.3.6 (and earlier) are affected by a cross-site request forgery (CSRF) vulnerability via the GraphQL API. Successful exploitation could lead to unauthorized modification of customer metadata by an unauthenticated attacker. Access to the admin console is not required for successful exploitation.

References

  • github.com/advisories/GHSA-h4xc-577p-hgj9
  • github.com/magento/magento2
  • github.com/magento/magento2/commit/a2eb7e29ea92a8bbc86c3b6b81b59d8533088497
  • github.com/magento/magento2/commit/a349e022c9ae070e7da262021f9ef182105aa00b
  • helpx.adobe.com/security/products/magento/apsb21-08.html
  • nvd.nist.gov/vuln/detail/CVE-2021-21027

Code Behaviors & Features

Detect and mitigate CVE-2021-21027 with GitLab Dependency Scanning

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Affected versions

All versions before 2.3.6-p1, all versions starting from 2.4.0 before 2.4.2

Fixed versions

  • 2.3.6-p1
  • 2.4.2

Solution

Upgrade to versions 2.3.6-p1, 2.4.2 or above.

Impact 4.3 MEDIUM

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

Learn more about CVSS

Weakness

  • CWE-352: Cross-Site Request Forgery (CSRF)

Source file

packagist/magento/community-edition/CVE-2021-21027.yml

Spotted a mistake? Edit the file on GitLab.

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