CVE-2025-14110 is a stored cross-site scripting vulnerability classified under CWE-79, found in the WP Js List Pages Shortcodes plugin for WordPress, specifically in all versions up to and including 1.21. The vulnerability stems from insufficient sanitization and escaping of the 'class' attribute within the plugin's shortcode implementation. Authenticated users with Contributor-level permissions or higher can inject arbitrary JavaScript code into pages by manipulating this attribute. Because the malicious script is stored persistently, it executes every time a user accesses the infected page, potentially compromising user sessions, stealing cookies, or performing unauthorized actions on behalf of users. The vulnerability does not require user interaction beyond page access and can affect any visitor to the compromised page, including administrators. The CVSS 3.1 base score is 6.4, reflecting network attack vector, low attack complexity, privileges required (low), no user interaction, and a scope change due to impact on other components. While no public exploits are currently known, the vulnerability poses a significant risk due to the common use of WordPress and the plugin in question. The lack of available patches at the time of publication necessitates immediate attention from site administrators. The vulnerability highlights the importance of proper input validation and output encoding in plugin development to prevent injection attacks.

For European organizations, the impact of this vulnerability can be substantial, especially for those relying on WordPress for content management and public-facing websites. Exploitation could lead to session hijacking, defacement, unauthorized data access, or the spread of malware through injected scripts. This can damage organizational reputation, lead to data breaches involving personal or sensitive information, and cause regulatory compliance issues under GDPR. The ability for contributors to inject scripts means insider threats or compromised contributor accounts can be leveraged to escalate attacks. Additionally, the persistent nature of stored XSS increases the attack surface by affecting all users visiting the infected pages. Given the widespread use of WordPress across Europe, including governmental, educational, and commercial sectors, the vulnerability could disrupt services and erode trust in digital platforms.

Organizations should immediately audit their WordPress installations to identify the presence of the WP Js List Pages Shortcodes plugin and verify the version in use. Until an official patch is released, restrict Contributor-level user permissions to trusted personnel only and consider temporarily disabling the plugin if feasible. Implement web application firewalls (WAFs) with rules designed to detect and block malicious shortcode payloads or suspicious script injections. Employ Content Security Policy (CSP) headers to limit the execution of unauthorized scripts on affected sites. Regularly monitor logs and user activity for unusual shortcode usage or content modifications. Educate content contributors about the risks of injecting untrusted content. Once a patch becomes available, prioritize prompt application. Additionally, consider deploying security plugins that sanitize shortcode inputs or provide enhanced input validation. Conduct thorough testing post-mitigation to ensure no residual vulnerabilities remain.