Arbitrary file upload in Processmaker Inc.
CVE-2025-34097
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.
Vulnerability class: Unrestricted File Upload
Published · last modified .
EPSS exploit prediction
EPSS: 0.016 (75.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 75.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.016 · change: +0.001
Affected products
- Processmaker Inc. — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/m… (exploit)
- wiki.processmaker.net/3.0/Plugin_Development (product)
- www.fortiguard.com/encyclopedia/ips/45757 (third-party-advisory)
- www.exploit-db.com/exploits/44399 (exploit)
- process-maker-authenticated-plugin-upload-rce (third-party-advisory)
- vulncheck.com/advisories/process-maker-authenticated-plugin-upload-rce (third-party-advisory)
Frequently asked questions
- What is CVE-2025-34097?
- CVE-2025-34097 is a vulnerability in Processmaker Inc., classified under Unrestricted Upload of File with Dangerous Type. Published 2025-07-10.
- Is CVE-2025-34097 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.