Arbitrary File Upload Vulnerability in Drag and Drop File Upload for Elementor Forms Plugin by WordPress

CVE-2026-18351

What is CVE-2026-18351?

CVE-2026-18351 is a security vulnerability found in the Drag and Drop File Upload for Elementor Forms plugin utilized by WordPress. This plugin allows users to easily upload files through a user-friendly interface, which is particularly popular for creating forms within websites built on the WordPress platform. The vulnerability arises from inadequate validation of file types within the plugin's upload function, specifically the elementor_file_upload function. This lack of robust checks means that attackers can potentially upload malicious files that may contain executable code, leading to serious security breaches such as remote code execution. Consequently, organizations that rely on this plugin and do not apply appropriate security measures could be at risk of significant data loss, system compromise, or a complete operational shutdown.

Potential impact of CVE-2026-18351

1. Remote Code Execution: The core risk of this vulnerability lies in the potential for remote code execution, enabling attackers to run unauthorized code on servers. This could allow them to gain control over the entire hosting environment, leading to data breaches and exploitation of sensitive user information.

2. Unauthorized Access: With the ability to upload malicious files, unauthorized users could manipulate the website or the server itself. This could facilitate further attacks, such as data theft or the installation of additional malware, putting both organizational and customer data at risk.

3. Operational Disruption: Following a successful exploitation of this vulnerability, an organization may face severe operational disruptions. This could stem from website downtime, the need for emergency security measures, or even legal consequences due to compromised data integrity, all of which can impact the organization's reputation and financial stability.

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