CVE-2025-34097: File Upload RCE

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.

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Weakness Type (CWE)

CWE-434 Unrestricted Upload

References

Other References

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

Frequently Asked Questions

What is 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.

How do I check if I'm vulnerable to CVE-2025-34097? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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