{"id":"CVE-2021-4443","aliases":["EUVD-2021-34628","GHSA-9crh-8h3q-mwwr"],"status":"published","title":"WordPress Mega Menu \u003c= 2.0.6 - Arbitrary File Creation","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.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00674,"percentile":0.5264,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-434"],"published":"2024-10-16T06:43:23Z","modified":"2026-06-17T04:19:46Z","products":[{"vendor":"quadlayers","product":"quadmenu – mega menu"},{"vendor":"quadlayers","product":"wordpress_mega_menu-quadmenu"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/04003542-fd62-4587-9834-70e7fe8f08ef?source=cve"},{"url":"https://sh3llcon.org/la-debilidad-de-wordpress/"},{"url":"https://www.acunetix.com/vulnerabilities/web/wordpress-plugin-wordpress-mega-menu-quadmenu-remote-code-execution-2-0-6/"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-4443"},{"url":"https://sh3llcon.org/la-debilidad-de-wordpress"},{"url":"https://www.acunetix.com/vulnerabilities/web/wordpress-plugin-wordpress-mega-menu-quadmenu-remote-code-execution-2-0-6"},{"url":"https://github.com/advisories/GHSA-9crh-8h3q-mwwr"}],"sources":{"cve":[{"id":"CVE-2021-4443","title":"WordPress Mega Menu \u003c= 2.0.6 - Arbitrary File Creation","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.","status":"published","published":"2024-10-16T06:43:23.798Z","modified":"2026-04-08T16:33:03.764Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:33:07.697752Z"}],"euvd":[{"id":"EUVD-2021-34628","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.","status":"published","published":"2024-10-16T06:43:23Z","modified":"2026-04-08T16:33:03Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T19:25:11.239745Z"}],"ghsa":[{"id":"GHSA-9crh-8h3q-mwwr","title":"The WordPress Mega Menu plugin for WordPress is vulnerable to Arbitrary File Creation in versions...","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.","status":"published","published":"2024-10-16T09:30:30Z","modified":"2024-10-16T09:30:31Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:58:30.925935Z"}],"nvd":[{"id":"CVE-2021-4443","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.","status":"published","published":"2024-10-16T07:15:09.713Z","modified":"2026-06-17T04:19:46.223Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:07:08.629518Z"}]}}