The vulnerability identified as CVE-2025-14054 affects the WC Builder – WooCommerce Page Builder for WPBakery plugin, widely used in WordPress e-commerce sites leveraging WooCommerce. This plugin allows site administrators to customize product pages using shortcodes, including `wpbforwpbakery_product_additional_information`. The vulnerability is a stored Cross-Site Scripting (XSS) flaw caused by improper neutralization of input during web page generation (CWE-79). Specifically, the 'heading_color' parameter and multiple other styling parameters within the shortcode do not undergo sufficient input sanitization or output escaping. As a result, an authenticated attacker with Shop Manager-level access or higher can inject arbitrary JavaScript code into product pages. When any user visits these pages, the malicious scripts execute in their browsers, potentially leading to session hijacking, defacement, or further exploitation. The CVSS 3.1 vector indicates network attack vector (AV:N), high attack complexity (AC:H), requiring privileges (PR:H), no user interaction (UI:N), and impacts confidentiality and integrity with low severity (C:L/I:L/A:N). No patches or known exploits are currently available, but the vulnerability's presence in all versions up to 1.2.0 means many sites remain at risk. The scope is limited to sites using this specific plugin and requires authenticated access, but the impact on affected sites can be significant due to the stored nature of the XSS.

For European organizations operating WooCommerce stores with the affected WC Builder plugin, this vulnerability poses a risk of persistent XSS attacks that can compromise customer data confidentiality and site integrity. Attackers with Shop Manager privileges could inject malicious scripts that execute in the browsers of site visitors, potentially leading to theft of session cookies, redirection to malicious sites, or unauthorized actions performed on behalf of users. This could damage brand reputation, lead to regulatory non-compliance (e.g., GDPR breaches if personal data is exposed), and cause financial losses. Since WooCommerce is popular among European SMBs and e-commerce platforms, the risk is non-trivial. The requirement for authenticated access limits exploitation to insiders or compromised accounts, but insider threats or credential theft scenarios increase the risk. The lack of patches means organizations must rely on mitigation until updates are available. The medium severity reflects moderate impact and exploitation complexity, but the persistent nature of stored XSS can amplify damage over time.

European organizations should immediately audit their WordPress installations to identify the presence of the WC Builder – WooCommerce Page Builder for WPBakery plugin and its version. Until an official patch is released, they should restrict Shop Manager and higher privileges to trusted personnel only and enforce strong authentication mechanisms, including multi-factor authentication, to reduce the risk of account compromise. Implement Web Application Firewall (WAF) rules to detect and block suspicious input patterns targeting the 'heading_color' and related shortcode parameters. Conduct regular security reviews of user-generated content and shortcode usage to detect injected scripts. Consider disabling or removing the plugin if it is not essential or replacing it with a more secure alternative. Monitor logs for unusual activity related to shortcode usage and user privilege escalations. Once a patch is available, prioritize timely updates. Additionally, educate administrators about the risks of XSS and the importance of input validation and output encoding in customizations.