Drag and Drop Multiple File Upload for Contact Form 7 < 1.3.9.9 - Unauthenticated Remote Code Execution

9.8
Improper Control of Generation of Code ('Code Injection')
CVE CVE-2026-18781
CVSS 9.8 (Critical)
Publicly Published August 24, 2026
Last Updated August 24, 2026
Researcher Jakub Herman

Description

The Drag and Drop Multiple File Upload for Contact Form 7 plugin for WordPress is vulnerable to Remote Code Execution in all versions up to 1.3.9.9. This is due to insufficient validation of user supplied input before it is executed. This makes it possible for unauthenticated attackers to execute arbitrary code on the server.

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Vulnerability Details for Drag and Drop Multiple File Upload for Contact Form 7

Software Type Plugin
Software Slug drag-and-drop-multiple-file-upload-contact-form-7 (view on wordpress.org)
Patched? Yes
Remediation Update to version 1.3.9.9, or a newer patched version
Affected Version
  • < 1.3.9.9
Patched Version
  • 1.3.9.9

Recent vulnerabilities in Drag and Drop Multiple File Upload for Contact Form 7

# Title CVE ID CVSS Researchers Date
1 Drag and Drop Multiple File Upload for Contact Form 7 < 1.3.9.9 - Authenticated (Administrator+) Stored Cross-Site Scripting CVE-2026-14325 4.4 Sai Praneeth Koti August 24, 2026
2 Drag and Drop Multiple File Upload for Contact Form 7 <= 1.3.9.7 - Authenticated (Administrator+) Stored Cross-Site Scripting via 'drag_n_drop_text' and 'drag_n_drop_browse_text' Settings CVE-2026-8991 4.4 Bao Luu Gia Nguyen June 5, 2026
3 Drag and Drop Multiple File Upload for Contact Form 7 <= 1.3.9.7 - Unauthenticated Stored Cross-Site Scripting CVE-2026-49055 7.2 fayespiegel June 3, 2026
4 Drag and Drop Multiple File Upload for Contact Form 7 <= 1.3.9.7 - Unauthenticated Arbitrary File Upload via Non-ASCII Filename Blacklist Bypass CVE-2026-5718 8.1 Leonid Semenenko (lsemenenko), Mitchell April 17, 2026
5 Drag and Drop Multiple File Upload for Contact Form 7 <= 1.3.9.6 - Unauthenticated Limited Arbitrary File Read via mfile Field CVE-2026-5710 7.5 Osvaldo Noe Gonzalez Del Rio (Os) April 17, 2026
6 Drag and Drop Multiple File Upload for Contact Form 7 <= 1.3.9.5 - Unauthenticated Arbitrary File Upload CVE-2026-3459 8.1 Thomas Sanzey March 5, 2026
7 Drag and Drop Multiple File Upload for Contact Form 7 <= 1.3.9.2 - Missing Authorization to Unauthenticated File Deletion CVE-2025-14457 3.7 shark3y January 14, 2026
8 Drag and Drop Multiple File Upload – Contact Form 7 <= 1.3.9.2 - Unauthenticated Limited Arbitrary File Upload CVE-2025-14842 6.1 andrea bocchetti January 6, 2026
9 Drag and Drop Multiple File Upload for Contact Form 7 <= 1.3.9.0 - Directory Traversal via `wpcf7_guest_user_id` Cookie CVE-2025-8464 5.3 Thien Tran August 15, 2025
10 Drag and Drop Multiple File Upload for Contact Form 7 <= 1.3.8.9 - Unauthenticated Arbitrary File Upload via Insufficient Blacklist Checks CVE-2025-3515 8.1 mikemyers June 16, 2025

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