CVE-2025-13887 identifies a stored Cross-Site Scripting (XSS) vulnerability in the AI BotKit – AI Chatbot & Live Support for WordPress plugin, a no-code solution for integrating AI chatbots and live support into WordPress websites. The vulnerability arises from improper neutralization of input during web page generation, specifically due to insufficient sanitization and escaping of the 'id' parameter within the ai_botkit_widget shortcode. This flaw allows authenticated users with Contributor-level permissions or higher to inject arbitrary JavaScript code that is stored persistently and executed whenever any user accesses the affected page. Since the vulnerability is stored XSS, the malicious payload can impact multiple users, including administrators and visitors, potentially leading to session hijacking, credential theft, or unauthorized actions performed in the context of the victim's browser session. The CVSS 3.1 base score of 6.4 reflects a medium severity, with the vector indicating network attack vector, low attack complexity, privileges required at the contributor level, no user interaction needed, and a scope change affecting confidentiality and integrity but not availability. No public exploits have been reported yet, but the vulnerability's presence in a widely used WordPress plugin increases the risk of future exploitation. The plugin's widespread adoption in European WordPress sites, particularly those with collaborative content management, heightens the threat to organizations relying on this software. The vulnerability underscores the importance of secure coding practices, especially input validation and output escaping in dynamic content generation within CMS plugins.

For European organizations, this vulnerability poses a significant risk to the confidentiality and integrity of web applications using the AI BotKit plugin. Exploitation can lead to unauthorized script execution in users' browsers, enabling attackers to steal session cookies, perform actions on behalf of users, or deliver further malware. This can compromise sensitive customer data, internal communications, or administrative controls, potentially resulting in reputational damage, regulatory penalties under GDPR, and operational disruptions. Organizations with multiple contributors or editors on WordPress sites are particularly vulnerable, as the attack requires contributor-level access. The absence of user interaction for exploitation means automated attacks could be feasible once exploit code is developed. Given the plugin's role in customer interaction via chatbots, attackers might also manipulate chatbot responses or intercept user inputs, further increasing the risk surface. The medium severity rating suggests a moderate but non-negligible threat that requires timely remediation to prevent escalation.

1. Monitor the vendor's announcements and update the AI BotKit plugin promptly once a security patch addressing CVE-2025-13887 is released. 2. Until an official patch is available, implement strict input validation and output escaping on the 'id' parameter in the ai_botkit_widget shortcode, either via custom code or security plugins that sanitize shortcode inputs. 3. Restrict Contributor-level permissions to trusted users only and review user roles to minimize the number of users who can inject content. 4. Employ Web Application Firewalls (WAF) with rules targeting stored XSS patterns to detect and block malicious payloads targeting this vulnerability. 5. Conduct regular security audits and code reviews of WordPress plugins and themes, focusing on input handling and output encoding. 6. Educate content contributors about the risks of injecting untrusted content and enforce strict content policies. 7. Enable Content Security Policy (CSP) headers to limit the execution of unauthorized scripts in browsers. 8. Monitor logs and user activity for unusual behavior indicative of exploitation attempts. 9. Backup website data regularly to enable recovery in case of compromise. 10. Consider isolating chatbot functionality or using alternative plugins with better security track records if immediate patching is not feasible.