CVE-2025-13007 is a stored cross-site scripting (XSS) vulnerability identified in the WP Social Ninja plugin for WordPress, which enables embedding social feeds, customer reviews, and chat widgets from platforms like Google Reviews, YouTube, and Facebook. The vulnerability exists in all versions up to and including 3.20.3 due to insufficient sanitization and escaping of externally sourced content before rendering it on web pages. Specifically, the plugin fails to properly neutralize malicious scripts embedded in content fetched from connected Google Business Profiles or Facebook pages. An unauthenticated attacker can exploit this by posting crafted malicious content to these social profiles, which the plugin then embeds into the WordPress site without adequate filtering. When a user visits a page containing the injected content, the malicious script executes in their browser context, potentially leading to session hijacking, credential theft, or unauthorized actions performed on behalf of the user. The vulnerability has a CVSS 3.1 base score of 6.1, reflecting medium severity, with an attack vector of network, low attack complexity, no privileges required, but requiring user interaction to trigger. The scope is changed as the vulnerability affects not only the plugin but also the users interacting with the compromised content. No known exploits have been reported in the wild, and no official patches have been published at the time of disclosure. The root cause lies in the plugin's failure to sanitize and escape dynamic content from third-party social media sources, which is a common challenge in integrating external feeds securely. This vulnerability underscores the importance of rigorous input validation and output encoding when handling externally sourced data in web applications.

For European organizations, this vulnerability poses a significant risk especially for those relying on WordPress sites integrated with social media feeds for marketing, customer engagement, or support. Successful exploitation can lead to the execution of arbitrary JavaScript in the browsers of site visitors, potentially resulting in session hijacking, theft of sensitive user data, unauthorized actions, or website defacement. This can damage organizational reputation, lead to regulatory non-compliance (e.g., GDPR breaches if personal data is compromised), and cause financial losses. Since the attack vector involves social media profiles, organizations with active Google Business Profiles or Facebook pages linked to their websites are particularly vulnerable. The medium severity score reflects that while the vulnerability does not directly compromise server integrity or availability, the impact on confidentiality and integrity of user data is notable. Additionally, the requirement for user interaction means phishing or social engineering could amplify the threat. European organizations with high web traffic and customer interaction through embedded social feeds are at increased risk of widespread impact.

1. Immediately audit and monitor all connected social media profiles (Google Business, Facebook) for unauthorized or suspicious content submissions. 2. Temporarily disable or remove the WP Social Ninja plugin until a security patch is released. 3. Implement strict content filtering and sanitization on all externally sourced feeds before rendering them on the website, using server-side validation and output encoding libraries. 4. Restrict connections to only trusted and verified social media accounts to reduce the risk of malicious content injection. 5. Educate site administrators and content managers about the risks of accepting external content and train them to recognize suspicious activity. 6. Employ Content Security Policy (CSP) headers to limit the execution of unauthorized scripts on the website. 7. Monitor web traffic and user reports for signs of XSS exploitation or unusual behavior. 8. Once available, promptly apply official patches or updates from the plugin vendor. 9. Consider implementing Web Application Firewalls (WAF) with rules to detect and block XSS payloads targeting this plugin. 10. Regularly review and update security configurations related to third-party integrations.