CVE-2021-4356CWE-862

Frontend File Manager <= 18.2 - Unauthenticated Arbitrary File Download

Critical · published June 7, 2023

CVSS v3.1
9.0
EPSS
2%
Percentile
74.4
In the wild
Unconfirmed
What it is

🚨 A simple lack of authentication is your site's Achilles' heel! Unauthenticated attackers can download ANY file from your WordPress site with the Frontend File Manager plugin up to version 18.2. 🔥 Think of it like a hotel where anyone can waltz in and grab the room keys without any checks. Without proper security measures, anyone could access sensitive files just lying around, like an open filing cabinet! This vulnerability is absolutely devastating; an attacker could easily download important files, including sensitive data and config files, potentially leading to a full site takeover. Imagine your private documents being leaked or your whole site getting hijacked!

Put simply

Think of it like a hotel where anyone can waltz in and grab the room keys without any checks. Without proper security measures, anyone could access sensitive files just lying around, like an open filing cabinet! The Frontend File Manager plugin allows unauthenticated access due to missing authentication protections, capability checks, and sanitization on the wpfm_file_meta_update AJAX action, enabling arbitrary file downloads.

What to do

This vulnerability is absolutely devastating; an attacker could easily download important files, including sensitive data and config files, potentially leading to a full site takeover. Imagine your private documents being leaked or your whole site getting hijacked! To protect your site, immediately update to the latest version of the Frontend File Manager plugin. Ensure proper authentication and capability checks are in place for AJAX actions. Regularly audit your plugins and their settings to maintain security. 🛡️ You’ve got this! By following these steps, you can lock down your site and keep those pesky attackers out. 🚀

The record
Technical detail
CVSS v3.1
9.0 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01522 · 74.4th percentile
Weakness
CWE-862 · Missing Authorization
Published
2023-06-07T01:51Z
EPSS history
Timeline
  • 07 JUN 01:51Z
    Frontend File Manager <= 18.2 - Unauthenticated Arbitrary File Download
    cvelistv5