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CVE-2021-4443

CRITICAL 9.8 CVSS 3.1
Published
October 16, 2024
Last modified
June 17, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-434
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

The WordPress Mega Menu plugin for WordPress is vulnerable to Arbitrary File Creation in versions up to, and including, 2.0.6 via the compiler_save AJAX action. This makes it possible for unauthenticated attackers to create arbitrary PHP files that can be used to execute malicious code.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • quadlayers QuadMenu – Mega Menu — Up to and including 2.0.6
  • quadlayers wordpress_mega_menu-quadmenu — Up to and including 2.0.6

References

  • sh3llcon.org https://sh3llcon.org/la-debilidad-de-wordpress/
  • www.acunetix.com https://www.acunetix.com/vulnerabilities/web/wordpress-plugin-wordpress-mega-menu-quadmenu-remote-code-execution-2-0-6/
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/04003542-fd62-4587-9834-70e7fe8f08ef?source=cve
  • nvd.nist.gov Official NVD record