CVE-2021-36023 Magento Commerce Widgets Update Layout XML Injection Vulnerability Could Lead To Remote Code Execution

What is CVE-2021-36023?

CVE-2021-36023 is a critical code injection vulnerability in Magento Magento, published on 6 Sep 2023. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

Magento Commerce versions 2.4.2 (and earlier), 2.4.2-p1 (and earlier) and 2.3.7 (and earlier) are affected by an XML Injection vulnerability in the Widgets Update Layout. An attacker with admin privileges can trigger a specially crafted script to achieve remote code execution.

Weakness: CWE-78

Which versions are affected by CVE-2021-36023?

9 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-2021-36023?

Upgrade magento/community-edition to a fixed version for your release line: 2.3.7-p1 or 2.4.2-p2.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2021-36023 being exploited?

There is no known exploitation of CVE-2021-36023 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-2021-36023, GHSA-8cjg-f53m-8m9q.