CVE-2025-34104

Public Exploit
Piwik Authenticated RCE via Custom Plugin Upload

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.

Category

9.4
CVSS
Severity: Critical
CVSS 4.0 •
EPSS 0.27%
Vendor Advisory matomo.org
Affected: Piwik (now Matomo) Web Analytics Platform
Published at:
Updated at:

References

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

Frequently Asked Questions

What is the severity of CVE-2025-34104?
CVE-2025-34104 has been scored as a critical severity vulnerability.
How to fix CVE-2025-34104?
To fix CVE-2025-34104, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-34104 being actively exploited in the wild?
It is possible that CVE-2025-34104 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-34104?
CVE-2025-34104 affects Piwik (now Matomo) Web Analytics Platform.
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