CVE-2021-21026 Magento Commerce Incorrect permissions Could Lead To Unauthorized Access

What is CVE-2021-21026?

CVE-2021-21026 is a medium-severity missing authorization vulnerability in Magento Magento, published on 11 Feb 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Magento versions 2.4.1 (and earlier), 2.4.0-p1 (and earlier) and 2.3.6 (and earlier) are affected by an improper authorization vulnerability in the integrations module. Successful exploitation could lead to unauthorized access to restricted resources by an unauthenticated attacker. Access to the admin console is required for successful exploitation.

Weakness: CWE-285

Which versions are affected by CVE-2021-21026?

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-2021-21026?

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

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2021-21026 being exploited?

There is no known exploitation of CVE-2021-21026 in the wild and no public exploit code.

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All Magento Magento vulnerabilities

Sources

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

Also known as BIT-magento-2021-21026, GHSA-crjc-2v9m-8w7r.