Threat database

Unauthenticated SQL Injection in WordPress File Upload <= 5.1.10 versions.

CVE-2026-66447 is a critical unauthenticated SQL Injection vulnerability affecting the nickboss WordPress File Upload plugin versions up to and including 5.1.7. This flaw allows remote attackers to inject SQL commands without authentication, potentially leading to high confidentiality impact and limited availability impact. No official patch or remediation guidance has been provided yet.

The WordPress File Upload plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 4.25.2. This is due to missing or incorrect nonce validation on the 'wfu_file_details' function. This makes it possible for unauthenticated attackers to modify user data details associated with uploaded files via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

The WordPress File Upload plugin for WordPress is vulnerable to Path Traversal in all versions up to, and including, 4.24.13 via wfu_file_downloader.php. This makes it possible for unauthenticated attackers to read files outside of the originally intended directory.

The WordPress File Upload plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 4.24.12 via the 'wfu_ABSPATH' cookie parameter. This makes it possible for unauthenticated attackers to execute code on the server.

The WordPress File Upload plugin for WordPress is vulnerable to Remote Code Execution, Arbitrary File Read, and Arbitrary File Deletion in all versions up to, and including, 4.24.15 via the 'wfu_file_downloader.php' file. This is due to lack of proper sanitization of the 'source' parameter and allowing a user-defined directory path. This makes it possible for unauthenticated attackers to execute code on the server.

The WordPress File Upload plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the 'wfu_ajax_action_read_subfolders' function in all versions up to, and including, 4.24.15. This makes it possible for authenticated attackers, with Subscriber-level access and above, to perform limited path traversal to view directories and subdirectories in WordPress. Files cannot be viewed.

The WordPress File Upload plugin for WordPress is vulnerable to Path Traversal in all versions up to, and including, 4.24.11 via wfu_file_downloader.php. This makes it possible for unauthenticated attackers to read or delete files outside of the originally intended directory. Successful exploitation requires the targeted WordPress installation to be using PHP 7.4 or earlier.

The WordPress File Upload plugin for WordPress is vulnerable to Stored Cross-Site Scripting via SVG File uploads in all versions up to, and including, 4.24.8 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses the SVG file.

The WordPress File Upload plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 4.24.7 via the 'uploadpath' parameter of the wordpress_file_upload shortcode. This makes it possible for authenticated attackers, with Contributor-level access and above, to upload limited files to arbitrary locations on the web server.

The WordPress File Upload plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's shortcode(s) in all versions up to, and including, 4.24.5 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.