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CVE-2021-21014: Magento vulnerable to a file upload restriction bypass

May 24, 2022 (updated February 10, 2025)

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.

References

  • github.com/advisories/GHSA-269w-pqc7-68q9
  • github.com/magento/magento2
  • github.com/magento/magento2/commit/a2eb7e29ea92a8bbc86c3b6b81b59d8533088497
  • github.com/magento/magento2/commit/a349e022c9ae070e7da262021f9ef182105aa00b
  • helpx.adobe.com/security/products/magento/apsb21-08.html
  • nvd.nist.gov/vuln/detail/CVE-2021-21014

Code Behaviors & Features

Detect and mitigate CVE-2021-21014 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →

Affected versions

All versions up to 2.0.2

Solution

Unfortunately, there is no solution available yet.

Impact 9.1 CRITICAL

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Learn more about CVSS

Weakness

  • CWE-434: Unrestricted Upload of File with Dangerous Type

Source file

packagist/magento/project-community-edition/CVE-2021-21014.yml

Spotted a mistake? Edit the file on GitLab.

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