CVE-2025-2005 in Front End Users Plugin
Summary
by MITRE • 04/02/2025
The Front End Users plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the file uploads field of the registration form in all versions up to, and including, 3.2.32. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 08/13/2025
The Front End Users plugin for WordPress presents a critical security vulnerability classified as CVE-2025-2005 that stems from inadequate input validation mechanisms within its file upload functionality. This vulnerability specifically affects versions up to and including 3.2.32 of the plugin, creating a pathway for unauthenticated attackers to exploit the system's registration form. The flaw resides in the absence of proper file type validation checks that should occur during the file upload process, allowing malicious actors to bypass security controls designed to restrict file uploads to legitimate formats.
The technical nature of this vulnerability aligns with CWE-434, which describes insecure file upload handling where applications fail to validate file types or content properly. Attackers can leverage this weakness by submitting malicious files through the plugin's registration form interface, which lacks the necessary safeguards to prevent unauthorized file uploads. The vulnerability's impact extends beyond simple file placement on the server as it creates conditions conducive to remote code execution, making it particularly dangerous for WordPress installations that rely on this plugin for user management.
The operational implications of this vulnerability are severe for affected WordPress sites, as it enables attackers to gain unauthorized access to server resources and potentially establish persistent backdoors. Once an attacker successfully uploads a malicious file, they can execute arbitrary code on the target system, potentially leading to complete compromise of the WordPress installation. This vulnerability undermines the fundamental security assumptions of the plugin's user registration functionality and creates opportunities for data exfiltration, service disruption, and further lateral movement within network environments.
Organizations and system administrators should prioritize immediate remediation by upgrading to the latest version of the Front End Users plugin where this vulnerability has been addressed. The mitigation strategy should also include implementing additional security layers such as web application firewalls, restricting file upload directories, and conducting thorough security audits of all plugin installations. From an ATT&CK framework perspective, this vulnerability maps to techniques involving initial access through web application attacks and privilege escalation through code execution, emphasizing the need for comprehensive defensive measures. Regular security assessments and vulnerability scanning should be implemented to identify similar weaknesses in other plugins or components of the WordPress ecosystem that may present similar attack vectors.