CVE-2021-21027 Magento Commerce Cross-Site Request Forgery (CSRF) Could Lead To Unauthorized Data Modification

What is CVE-2021-21027?

CVE-2021-21027 is a medium-severity vulnerability in Magento Magento, published on 11 Feb 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

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.

Weakness: CWE-352

Which versions are affected by CVE-2021-21027?

7 open source packages ship an affected version, including magento/community-edition, magento and magento/project-community-edition. It affects 1 product.

Products include Magento Magento.

How do I fix CVE-2021-21027?

Upgrade magento/community-edition to a fixed version for your release line: 2.3.6-p1 or 2.4.2.

Is CVE-2021-21027 being exploited?

There is no known exploitation of CVE-2021-21027 in the wild and no public exploit code.

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• CVE-2020-9576 Magento command injection vulnerability Critical 9.8
• CVE-2020-9578 Magento command injection vulnerability Critical 9.8
• CVE-2020-9579 Magento Security mitigation bypass vulnerability Critical 9.8
• CVE-2020-9580 Magento Security mitigation bypass vulnerability Critical 9.8

All Magento Magento vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-magento-2021-21027, GHSA-h4xc-577p-hgj9.