Arbitrary File Upload Vulnerability in WooCommerce Designer Pro Plugin for WordPress

CVE-2025-6440

What is CVE-2025-6440?

CVE-2025-6440 is a critical vulnerability found in the WooCommerce Designer Pro plugin for WordPress, particularly affecting all versions up to and including 1.9.26. This plugin is commonly used in web applications that facilitate e-commerce and design services. The vulnerability arises due to inadequate file type validation in the 'wcdp_save_canvas_design_ajax' function. As a result, unauthenticated attackers can exploit this flaw to upload arbitrary files to the server where the affected site is hosted. This capability raises the risk of remote code execution, where an attacker can execute malicious code on the web server, potentially leading to full system compromise.

Potential impact of CVE-2025-6440

1. Unauthorized Access and Control: The ability for attackers to upload arbitrary files could lead to unauthorized access to the server, allowing them to manipulate or control the web application, which may result in data breaches or unauthorized transactions.

2. Remote Code Execution: The vulnerability enables the possibility of executing arbitrary code on the server. If exploited, attackers could leverage this to deploy malware, create backdoors, or perform other malicious activities that compromise the integrity and availability of the server.

3. Reputation Damage and Financial Loss: Organizations affected by this vulnerability risk significant reputational harm and potential financial losses. Compromised systems can lead to a loss of customer trust, regulatory fines, and costs associated with incident response and recovery efforts.

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