Vulnerability record · CVE-2021-24160 · published 5 April 2021

CVE-2021-24160: Expresstech responsive menu unrestricted file upload vulnerability

Expresstech · Responsive Menu

In the Reponsive Menu (free and Pro) WordPress plugins before 4.0.4, subscribers could upload zip archives containing malicious PHP files that would get extracted to the /rmp-menu/ directory. These files could then be accessed via the front end of the site to trigger remote code execution and ultimately allow an attacker to execute commands to further infect a WordPress site.

8.8 CVSS 3.1 High EPSS 8.2% · top 5.3% CWE-434 · Unrestricted file upload

8.8CVSS 3.1 base score, v2 6.5

8.2%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

4References, 4 tagged exploit

17 Jun 2026Last modified by NVD

Description

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Responsive Menu Expresstech

References

Link	Tags
https://wpscan.com/vulnerability/066ba5d4-4aaa-4462-b106-500c1f291c37	ExploitThird Party Advisory
https://www.wordfence.com/blog/2021/02/multiple-vulnerabilities-patched-in-responsive-menu-plugin/	ExploitThird Party Advisory
https://wpscan.com/vulnerability/066ba5d4-4aaa-4462-b106-500c1f291c37	ExploitThird Party Advisory
https://www.wordfence.com/blog/2021/02/multiple-vulnerabilities-patched-in-responsive-menu-plugin/	ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.8CVE-2022-25602Expresstech responsive menu information exposure vulnerabilityNonce token leak vulnerability leading to arbitrary file upload, theme deletion, plugin settings change discovered in Responsive Menu WordPress plugi…EPSS 1.3%18 Mar 2022 8.8CVE-2021-24161Expresstech responsive menu cross-site request forgery vulnerabilityIn the Reponsive Menu (free and Pro) WordPress plugins before 4.0.4, attackers could craft a request and trick an administrator into uploading a zip …EPSS 1.2%5 Apr 2021 8.8CVE-2021-24162Expresstech responsive menu cross-site request forgery vulnerabilityIn the Reponsive Menu (free and Pro) WordPress plugins before 4.0.4, attackers could craft a request and trick an administrator into importing all ne…EPSS 0.80%5 Apr 2021 8.8CVE-2017-18513Expresstech responsive menu cross-site request forgery vulnerabilityThe responsive-menu plugin before 3.1.4 for WordPress has no CSRF protection mechanism for the admin interface.EPSS 0.65%14 Aug 2019 10.0CVE-2026-56291Balbooa Forms Joomla extension unauthenticated arbitrary file upload RCEThe Balbooa Forms extension for Joomla before version 2.4.1 accepts file uploads without authentication and does not restrict file type, allowing exe…KEVEPSS 15%analysed9 Jul 2026 10.0CVE-2026-48939iCagenda Joomla extension unrestricted file upload leads to PHP RCEThe iCagenda extension for Joomla fails to restrict file types in its file attachment feature, allowing arbitrary file uploads that result in PHP cod…KEVEPSS 20%analysed20 Jun 2026 10.0CVE-2026-56290Joomla Page Builder CK unauthenticated file upload leads to RCEThe Joomla Page Builder CK extension before 3.6.0 allows unauthenticated arbitrary file uploads, letting an attacker place executable files on the se…KEVEPSS 31%analysed29 Jun 2026 10.0CVE-2026-48908SP Page Builder for Joomla unauthenticated arbitrary file upload RCESP Page Builder for Joomla permits unauthenticated users to upload arbitrary files, which can lead to upload and execution of PHP code. The flaw is a…KEVEPSS 89%analysed20 Jun 2026

Source: NIST National Vulnerability Database (record CVE-2021-24160), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.