CVE-2025-64296 identifies a Missing Authorization vulnerability (CWE-862) in the Facebook for WooCommerce plugin, versions up to 3.5.7. This vulnerability arises from incorrectly configured access control mechanisms that fail to properly verify whether a user has the necessary permissions to perform certain actions within the plugin. As a result, unauthorized users—without requiring authentication or user interaction—can exploit this flaw to perform actions that should be restricted, leading to potential integrity violations such as unauthorized modification of data or settings related to Facebook integration in WooCommerce stores. The CVSS 3.1 base score of 5.3 reflects a medium severity level, with an attack vector of network (AV:N), low attack complexity (AC:L), no privileges required (PR:N), and no user interaction needed (UI:N). The scope remains unchanged (S:U), and the impact affects integrity only (I:L), with no confidentiality or availability impact. No patches or known exploits are currently reported, but the vulnerability's presence in a widely used e-commerce plugin integrated with Facebook services poses a risk to online retailers relying on this functionality. The vulnerability could allow attackers to manipulate Facebook-related commerce data, potentially disrupting advertising, sales tracking, or customer engagement features integrated via the plugin.

For European organizations, especially those operating e-commerce platforms using WooCommerce integrated with Facebook, this vulnerability poses a risk to the integrity of their commerce data and Facebook-related configurations. Unauthorized modifications could lead to incorrect sales data, misconfigured advertising campaigns, or manipulation of customer engagement metrics, potentially causing financial losses and reputational damage. While confidentiality and availability are not directly impacted, the integrity compromise could undermine trust in the e-commerce platform's data accuracy. Given the widespread use of WooCommerce in Europe and the importance of Facebook marketing channels, the vulnerability could affect a broad range of small to medium-sized enterprises. The absence of required authentication and user interaction lowers the barrier for exploitation, increasing the risk of automated or remote attacks. However, the lack of known exploits in the wild currently reduces immediate threat levels. Organizations failing to address this vulnerability may face increased risk of fraud, data manipulation, or operational disruptions in their online sales processes.

European organizations should immediately audit and tighten access control configurations within the Facebook for WooCommerce plugin to ensure that only authorized users can perform sensitive actions. Until an official patch is released, restrict plugin permissions to the minimum necessary roles and monitor logs for unusual activity related to Facebook integration features. Employ web application firewalls (WAFs) to detect and block suspicious requests targeting the plugin's endpoints. Regularly update WooCommerce and all related plugins to the latest versions as patches become available. Conduct internal penetration testing focusing on access control weaknesses in e-commerce plugins. Educate administrators and developers about the risks of missing authorization and the importance of secure access control design. Additionally, consider isolating Facebook integration components to limit potential damage from unauthorized access. Maintain backups of critical e-commerce data to enable recovery in case of data integrity issues. Finally, monitor threat intelligence sources for any emerging exploit attempts targeting this vulnerability.