CVE-2021-21014: Magento Commerce Arbitrary Folder Empty Could Lead To Arbitrary Code Execution

Severity: medium (CVSS 6.5 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-02-11 · updated 2026-06-17
Weakness: CWE-434

Description

Magento versions 2.4.1 (and earlier), 2.4.0-p1 (and earlier) and 2.3.6 (and earlier) are vulnerable to a file upload restriction bypass. Successful exploitation could lead to arbitrary code execution by an authenticated attacker. Access to the admin console is required for successful exploitation.

Affected products

Adobe Magento Commerce: before 2.3.6; 2.3.6, 2.4.0, 2.4.0-p1, 2.4.1 — fixed in 2.3.6

How to fix

Upgrade to a fixed version: Adobe Magento Commerce 2.3.6. Check the vendor advisory for mitigations.

References

https://helpx.adobe.com/security/products/magento/apsb21-08.html
https://helpx.adobe.com/security/products/magento/apsb21-08.html

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