CVE-2025-34104

Piwik Authenticated RCE via Custom Plugin Upload

An authenticated remote code execution vulnerability exists in Piwik (now Matomo) versions prior to 3.0.3 via the plugin upload mechanism. In vulnerable versions, an authenticated user with Superuser privileges can upload and activate a malicious plugin (ZIP archive), leading to arbitrary PHP code execution on the underlying system. Starting with version 3.0.3, plugin upload functionality is disabled by default unless explicitly enabled in the configuration file.

Affected

Piwik (now Matomo) · Web Analytics Platform

CVSS v4.0 VULNCHECK

9.4 CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS

1.91% chance of exploitation in the next 30 days, 79th percentile

Published

2025-07-15

Updated

2026-07-14

Proof-of-concept exploits (1)

• https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/uni…

Metasploit modules (1)

• rapid7/metasploit-framework/blob/master/modules/exploits/unix/webapp/piwik_superuser_plug…

References

• CVE Record
• NVD entry