CVE-2025-4392
Shared Files <= 1.7.48 - Unauthenticated Stored Cross-Site Scripting via sanitize_file Function
CVSS Score
7.2
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-79 |
| Vendor | anssilaitila |
| Product | shared files – frontend file upload form & secure file sharing |
| Published | Jun 3, 2025 |
| Last Updated | Apr 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
anssilaitila / Shared Files – Frontend File Upload Form & Secure File Sharing
0 ≤ 1.7.48
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/469a9c8a-0708-4c93-99d8-e9157a1f91f5?source=cve github.com: https://github.com/anssilaitila/shared-files/blob/master/admin/class-sf-admin-allow-more-file-types.php wordpress.org: https://wordpress.org/plugins/shared-files/#developers plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset/3304053/
Credits
Martin Martin