Frontend File Manager <= 18.2 - Unauthenticated Content Injection

Missing Authorization
CVE CVE-2021-4369
CVSS 5.8 (Medium)
Publicly Published July 12, 2021
Last Updated January 22, 2024
Researcher Jerome Bruandet - NinTechNet


The Frontend File Manager plugin for WordPress is vulnerable to Unauthenticated Content Injection in versions up to, and including, 18.2. This is due to lacking authorization protections, checks against users editing other's posts, and lacking a security nonce, all on the wpfm_edit_file_title_desc AJAX action. This makes it possible for unauthenticated attackers to edit the content and title of every page on the site.



Vulnerability Details for Frontend File Manager Plugin

Software Type Plugin
Software Slug nmedia-user-file-uploader (view on
Patched? Yes
Remediation Update to version 18.3, or a newer patched version
Affected Version
  • < 18.3
Patched Version
  • 18.3

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