Vulnerability · Published Aug 5, 2026 · Assigned by TuranSec
CVE-2026-54416Pluck CMS - Unrestricted File Upload via Missing .php8 Extension in Upload Blacklist
High 7.2
In plain English
A high-severity unrestricted file upload in Pluck CMS from pluck-cms. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 43% of all known vulnerabilities).
Severity (CVSS 3.1)7.2High
Exploit odds (30 days)0.5%top 57.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
Weakness: CWE-434 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
References
- https://github.com/pluck-cms/pluck third-party-advisory