Piwik (now Matomo) Authenticated RCE via Custom Plugin Upload

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severity: critical
date: July 14, 2025
Affecting: Piwik (now Matomo) < 3.0.3
CVE: CVE-2025-34104
CVE type: Unrestricted File Upload
CVSS: 9.4
CVSS V4 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
References: Matomo Advisory
Matomo Documentation
Researcher Advisory
Metasploit Module
EDB-41358
Credit: FireFart