CVE-2025-14506 identifies a stored Cross-Site Scripting (XSS) vulnerability in the ConvertForce Popup Builder plugin for WordPress, specifically in the handling of the Gutenberg block's entrance_animation attribute. The vulnerability stems from insufficient input sanitization and output escaping, allowing an authenticated attacker with Author-level or higher privileges to inject arbitrary JavaScript code into pages. This malicious code is stored persistently and executes in the context of any user who accesses the infected page, potentially compromising user sessions, stealing cookies, or performing actions on behalf of users without their consent. The attack vector requires no user interaction beyond visiting the infected page, and the attacker needs only Author-level access, which is common in collaborative WordPress environments. The vulnerability affects all versions up to and including 0.0.7 of the plugin. Although no public exploits are currently known, the medium CVSS score (6.4) reflects the ease of exploitation combined with limited impact on availability but notable impact on confidentiality and integrity. The vulnerability was published on January 10, 2026, with no official patches available at the time of reporting. The CWE-79 classification confirms the nature of the flaw as improper neutralization of input during web page generation, a common and dangerous web application vulnerability.

For European organizations, this vulnerability poses a significant risk, particularly for those relying on WordPress sites with multiple content authors or editors. Attackers with Author-level access can exploit this flaw to inject persistent malicious scripts, potentially leading to session hijacking, unauthorized actions, data theft, or defacement of web content. This can damage organizational reputation, lead to regulatory non-compliance (e.g., GDPR breaches if personal data is compromised), and disrupt business operations. The impact is heightened in sectors such as e-commerce, media, and public services where WordPress is widely used and user trust is critical. Since the vulnerability does not require user interaction beyond page access, it can be exploited silently and broadly. The scope includes all users who visit the infected pages, increasing the potential damage. However, the requirement for Author-level privileges limits exploitation to insiders or compromised accounts, somewhat reducing the attack surface but still representing a serious insider threat or post-compromise risk.

European organizations should immediately audit their WordPress installations to identify the presence of the ConvertForce Popup Builder plugin and verify its version. Since no official patches are currently available, administrators should consider temporarily disabling or uninstalling the plugin until a secure update is released. Implement strict role-based access controls to limit Author-level privileges only to trusted users, and monitor for unusual activity or privilege escalations. Employ Web Application Firewalls (WAFs) with custom rules to detect and block suspicious input patterns related to the entrance_animation attribute. Additionally, apply manual input validation and output escaping in custom code if the plugin is customized or extended. Regularly review and sanitize user-generated content, and educate content authors about the risks of injecting untrusted code. Finally, maintain up-to-date backups and incident response plans to quickly recover from potential compromises.