CVE-2025-14984 is a stored cross-site scripting vulnerability identified in the Gutenverse Form plugin for WordPress, which is widely used for contact forms, booking, reservation, and subscription functionalities within the Block Editor environment. The vulnerability stems from the plugin's framework component that adds SVG files to the allowed MIME types via the WordPress upload_mimes filter but fails to sanitize the SVG file contents. SVG files can contain embedded JavaScript, and without sanitization, malicious actors with Author-level or higher privileges can upload SVG files containing harmful scripts. These scripts execute when the SVG is rendered in a victim's browser, leading to arbitrary JavaScript execution. This can result in session hijacking, defacement, or further exploitation of the victim's browser environment. The vulnerability requires authenticated access but no user interaction, and it affects all versions up to and including 2.3.2. The CVSS 3.1 base score is 6.4, reflecting a medium severity with network attack vector, low attack complexity, privileges required, no user interaction, and a scope change due to impact on other components. No known exploits are currently reported in the wild, but the potential for exploitation exists given the widespread use of WordPress and the plugin. The lack of patch links suggests a patch may not yet be available, emphasizing the need for immediate mitigation steps.

For European organizations, this vulnerability poses a significant risk to websites using the Gutenverse Form plugin, particularly those with multiple content authors or contributors who have Author-level access or higher. Successful exploitation can lead to arbitrary JavaScript execution in the browsers of site visitors or administrators, potentially resulting in session hijacking, theft of sensitive information, defacement, or further malware distribution. This can damage organizational reputation, lead to data breaches, and cause regulatory compliance issues under GDPR due to unauthorized access or data exposure. The vulnerability's exploitation could also facilitate lateral movement within the affected web infrastructure if administrative sessions are compromised. Given the reliance on WordPress for many corporate, governmental, and e-commerce websites in Europe, the impact could be widespread, especially for sectors handling sensitive customer data or critical services. The medium severity score indicates a moderate but non-trivial risk that should be addressed promptly to prevent exploitation.

1. Immediately restrict SVG file uploads to trusted users only or disable SVG uploads entirely if not required. 2. Implement robust SVG sanitization using libraries such as SVG Sanitizer or similar tools that remove scripts and potentially harmful elements from SVG files before upload. 3. Review and tighten user permissions, ensuring that only trusted users have Author-level or higher access to upload files. 4. Monitor uploaded SVG files for suspicious content and audit logs for unusual upload activity. 5. Keep the Gutenverse Form plugin and WordPress core updated; apply patches as soon as they become available. 6. Employ Content Security Policy (CSP) headers to restrict script execution sources, mitigating the impact of any injected scripts. 7. Educate content authors and administrators about the risks of uploading untrusted files and encourage security best practices. 8. Consider using web application firewalls (WAFs) with rules to detect and block malicious SVG payloads. 9. Conduct regular security assessments and penetration testing focusing on file upload functionalities.