Vulnerability Description
The Shared Files – Frontend File Upload Form & Secure File Sharing plugin for WordPress is vulnerable to Stored Cross-Site Scripting via html File uploads in all versions up to, and including, 1.7.48 due to insufficient input sanitization and output escaping within the sanitize_file() function. This makes it possible for unauthenticated attackers to bypass the plugin’s MIME-only checks and inject arbitrary web scripts in pages that will execute whenever a user accesses the html file.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/anssilaitila/shared-files/blob/master/admin/class-sf-admin-al
- https://plugins.trac.wordpress.org/changeset/3304053/
- https://wordpress.org/plugins/shared-files/#developers
- https://www.wordfence.com/threat-intel/vulnerabilities/id/469a9c8a-0708-4c93-99d
FAQ
What is CVE-2025-4392?
CVE-2025-4392 is a vulnerability with a CVSS score of 7.2 (HIGH). The Shared Files – Frontend File Upload Form & Secure File Sharing plugin for WordPress is vulnerable to Stored Cross-Site Scripting via html File uploads in all versions up to, and including, 1.7.48 ...
How severe is CVE-2025-4392?
CVE-2025-4392 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-4392?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.