CVE-2026-54416highCWE-434

CVE-2026-54416: high-severity vulnerability in pluck-cms Pluck CMS

Pluck CMS - Unrestricted File Upload via Missing .php8 Extension in Upload Blacklist

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21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.2epss 0.5%
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.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Affected products
pluck-cms · Pluck CMS
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