CVE-2025-34104 json
Piwik Authenticated RCE via Custom Plugin Upload
published last yr. modified 3mo ago also EUVD-2025-21429
- cvss
- 9.4
- version 4.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.9%
- EPSS 1.9% chance of exploitation in 30 days, percentile 79%
- public exploits
- 1
- Metasploit
Summary
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.
Patch / fix
- Piwik (now Matomo) Web Analytics Platform 3.0.3
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Check with FencerTimeline
- First public exploit (Metasploit exploit/unix/webapp/piwik_superuser_plugin_upload)
- Published
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- last yr.
Exploit prediction
1.91% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- Metasploit exploit/unix/webapp/piwik_superuser_plugin_upload Piwik Superuser Plugin Upload metasploit exploit, excellent rank, 2017-02-05
- raw.githubusercontent.com https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/webapp/piwik_superuser_plugin_upload.rb referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 9.4 | 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 |
| CNA | 4.0 | 9.4 | 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 |
Affected products
- Piwik (now Matomo) Web Analytics Platform
Classification
References
-
raw.githubusercontent.com
/rapid7/metasploit-framework/master/modules/exploits/unix/webapp/piwik_superuser_plugin_upload.rb
exploit
-
matomo.org
/changelog/piwik-3-0-3/
vendor-advisory
-
matomo.org
/faq/plugins/faq_21/
product
-
firefart.at
/post/turning_piwik_superuser_creds_into_rce/
third-party-advisory
-
vulncheck.com
/advisories/piwik-authenticated-rce-via-custom-plugin-upload
third-party-advisory
Sources
- CVE List CVE-2025-34104
- NVD CVE-2025-34104
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.