MW WP Form <= 4.4.2 - Directory Traversal via _file_upload

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVE CVE-2023-28409
CVSS 5.3 (Medium)
Publicly Published May 8, 2023
Last Updated May 17, 2023
Researcher Shuya Ota


The MW WP Form plugin for WordPress is vulnerable to Directory Traversal in versions up to, and including, 4.4.2 via the _file_upload function. This allows unauthenticated attackers to upload files of allowed types to arbitrary directories on the site.



1 affected software package

Software Type Plugin
Software Slug mw-wp-form (view on
Patched? Yes
Remediation Update to version 4.4.3, or a newer patched version
Affected Version
  • < 4.4.3
Patched Version
  • 4.4.3

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