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Vulnerability record · CVE-2026-54416 · published 5 August 2026

CVE-2026-54416: Unrestricted file upload vulnerability

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.

7.2 CVSS 3.1 High EPSS 0.50% · top 59.6% CWE-434 · Unrestricted file upload Deferred
7.2CVSS 3.1 base score
0.50%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
28 Aug 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

References

LinkTags
https://github.com/pluck-cms/pluck

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-54416), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.