---
id: CVE-2026-54416
title: >-
  Pluck CMS through 4.7.21 restricts dangerous file uploads in its admin
  file-management feature using a fixed blacklist in data/inc/files.php
  ('.php','php3','php4','php5','php6','php7','phtml','.phtm','.pht','.ph3','.ph4','.ph5','.asp','.…
summary: >-
  Pluck CMS through 4.7.21 restricts dangerous file uploads in its admin
  file-management feature using a fixed blacklist in data/inc/files.php
  ('.php','php3','php4','php5','php6','php7','phtml','.phtm','.pht','.ph3','.ph4','.ph5','.asp','.…
severity: high
cvss: 7.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-434
published: '2026-08-05'
updated: '2026-08-10'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-54416'
references:
  - url: 'https://github.com/pluck-cms/pluck'
    label: 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c
tags:
  - nvd
epss: 0.00499
epssPercentile: 0.40225
ingestedAt: '2026-08-10T12:39:47.970Z'
---

## Overview

Pluck CMS through 4.7.21 restricts dangerous file uploads in its admin file-management feature using a fixed blacklist in data/inc/files.php ('.php','php3','php4','php5','php6','php7','phtml','.phtm','.pht','.ph3','.ph4','.ph5','.asp','.cgi','.phar'), checked against the last 4-5 characters of the filename.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.