MW WP Form <= 5.0.1 - Unauthenticated Arbitrary File Upload

9.8
Unrestricted Upload of File with Dangerous Type
CVE CVE-2023-6316
CVSS 9.8 (Critical)
Publicly Published December 4, 2023
Last Updated January 11, 2024
Researcher István Márton - Wordfence

Description

The MW WP Form plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type validation in the '_single_file_upload' function in versions up to, and including, 5.0.1. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.

Learn more about Arbitrary File Upload vulnerabilities and how to prevent them.

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Vulnerability Details for MW WP Form

Software Type Plugin
Software Slug mw-wp-form (view on wordpress.org)
Patched? Yes
Remediation Update to version 5.0.2, or a newer patched version
Affected Version
  • <= 5.0.1
Patched Version
  • 5.0.2

Recent vulnerabilities in MW WP Form

# Title CVE ID CVSS Researchers Date
1 MW WP Form <= 5.1.3 - Authenticated (Editor+) Stored Cross-Site Scripting via 'memo' Parameter CVE-2026-8853 4.4 Sérgio Charruadas (itzvenom) June 9, 2026
2 MW WP Form <= 5.1.3 - Unauthenticated Stored Cross-Site Scripting CVE-2026-48871 7.2 VanTastic June 1, 2026
3 MW WP Form <= 5.1.2 - Insecure Direct Object Reference to Unauthenticated Sensitive Information Disclosure via 'post_id' Query Parameter CVE-2026-6206 5.3 Kirasec May 13, 2026
4 MW WP Form <= 5.1.1 - Unauthenticated Arbitrary File Move via regenerate_upload_file_keys CVE-2026-5436 8.1 Sander Horsman April 8, 2026
5 MW WP Form <= 5.1.0 - Unauthenticated Arbitrary File Move via move_temp_file_to_upload_dir CVE-2026-4347 8.1 ISMAILSHADOW April 1, 2026
6 MW WP Form <= 5.0.6 - Authenticated (Editor+) Stored Cross-Site Scripting CVE-2024-24804 5.5 Huynh Tien Si January 31, 2024
7 MW WP Form <= 5.0.3 - Improper Limitation of File Name to Unauthenticated Arbitrary File Deletion CVE-2023-6559 7.5 Thomas Sanzey December 15, 2023
8 MW WP Form <= 4.4.5 - Missing Authorization CVE-2023-46206 5.3 Revan Arifio October 19, 2023
9 MW WP Form <= 4.4.2 - Directory Traversal via _file_upload CVE-2023-28409 5.3 Shuya Ota May 8, 2023

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