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
EPSS: 0.010 (60.2th percentile) — read the EPSS interpretation.
Affected products
- Processmaker Inc. — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- disclosure@vulncheck.com (exploit)
- disclosure@vulncheck.com (product)
- disclosure@vulncheck.com (third-party-advisory)
- disclosure@vulncheck.com (exploit)
- disclosure@vulncheck.com (third-party-advisory)
- disclosure@vulncheck.com (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.