CVE-2025-34104

CRITICAL EPSS 54.9%
Published Jul 15, 202511mo ago · Modified Jun 17, 20261w ago
9.4 CVSS 4.0
Critical
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Published Jul 15, 2025 11mo ago
Last Modified Jun 17, 2026 1w ago

Description

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.

CVSS Details

Base Score
9.4
Exploitability
—
Impact
—
Vector string
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/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
Attack Vector Network
Attack Complexity Low
Privileges Required High
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
54.9% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 2

CWE-306 Missing Authentication for Critical Function Authentication
CWE-434 Unrestricted Upload of File with Dangerous Type Resource Mgmt

References 5

  • firefart.at https://firefart.at/post/turning_piwik_superuser_creds_into_rce/
  • matomo.org https://matomo.org/changelog/piwik-3-0-3/
  • matomo.org https://matomo.org/faq/plugins/faq_21/
  • raw.githubusercontent.com https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/webapp/piwik_superuser_plugin_upload.rb
  • vulncheck.com https://www.vulncheck.com/advisories/piwik-authenticated-rce-via-custom-plugin-upload

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.