Description

The Drag and Drop Multiple File Upload for Contact Form 7 plugin for WordPress is vulnerable to arbitrary file upload in versions up to, and including, 1.3.9.6. This is due to insufficient file type validation that occurs when custom blacklist types are configured, which replaces the default dangerous extension denylist instead of merging with it, and the wpcf7_antiscript_file_name() sanitization function being bypassed for filenames containing non-ASCII characters. This makes it possible for unauthenticated attackers to upload arbitrary files, such as PHP files, to the server, which can be leveraged to achieve remote code execution.

INFO

Published Date :

2026-04-17T17:25:55.466Z

Last Modified :

2026-04-17T18:34:48.917Z

Source :

Wordfence
AFFECTED PRODUCTS

The following products are affected by CVE-2026-5718 vulnerability.

Vendors Products
Glenwpcoder
  • Drag And Drop Multiple File Upload For Contact Form 7
Wordpress
  • Wordpress

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact