CVE-2021-21014

Name: CVE-2021-21014
Creator: NVD / NIST
Published: 2021-02-11T21:15:12.54+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 4.21%

Last modified Jun 17, 2026

CVE-2021-21014 is a vulnerability of currently unknown severity. 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. EPSS estimates a 4.21% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

4.21%

89.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-434

Affected Software

Vendor	Product	Versions
Magento	Magento	< 2.3.6
Magento	Magento	2.3.6
Magento	Magento	2.4.0
Magento	Magento	2.4.1

References

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

Timeline

Published: Feb 11, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-21014?

How severe is CVE-2021-21014?

Severity scoring for CVE-2021-21014 is pending analysis. The EPSS model estimates a 4.21% probability of exploitation in the next 30 days.

How do I fix CVE-2021-21014?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-21014?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST