CVE-2021-36042 Magento executes code via the API File Option Upload Extension

What is CVE-2021-36042?

CVE-2021-36042 is a critical vulnerability in Adobe Magento Commerce, published on 1 Sep 2021. 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 improper input validation vulnerability in the API File Option Upload Extension. An attacker with Admin privileges can achieve unrestricted file upload which can result in remote code execution.

Weakness: CWE-434, CWE-20

Which versions are affected by CVE-2021-36042?

8 open source packages ship an affected version, including magento/community-edition and magento/project-community-edition. It affects 2 products.

Products include Adobe Adobe Commerce, Adobe Magento Open Source.

How do I fix CVE-2021-36042?

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

Is CVE-2021-36042 being exploited?

There is no known exploitation of CVE-2021-36042 in the wild and no public exploit code.

Other vulnerabilities in Adobe Magento Commerce

• CVE-2021-36022 Magento Commerce Widgets Update Layout XML Injection Vulnerability Could Lead To Remote Code Execution Critical 9.1
• CVE-2021-36024 Magento Commerce Improper Neutralization of Special Elements Used In A Command Critical 9.1
• CVE-2021-36025 Magento Commerce Customer Edition Improper Input Validation Could Lead To Remote Code Execution Critical 9.1
• CVE-2021-36028 Magento Commerce XML Injection Vulnerability Could Lead To Remote Code Execution Critical 9.1
• CVE-2021-36029 Magento Commerce Improper Authorization Vulnerability Could Lead To Remote Code Execution Critical 9.1

Sources

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

Also known as GHSA-6cwv-wj7v-73xp.