ProcessMaker up to 3.5.3 Plugin install unrestricted upload

Summaryinfo

A vulnerability was found in ProcessMaker up to 3.5.3. It has been classified as critical. Affected by this vulnerability is the function install of the component Plugin Handler. Performing a manipulation results in unrestricted upload. This vulnerability is identified as CVE-2025-34097. The attack can be initiated remotely. Additionally, an exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in ProcessMaker up to 3.5.3. It has been classified as critical. This affects the function install of the component Plugin Handler. The manipulation with an unknown input leads to a unrestricted upload vulnerability. CWE is classifying the issue as CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was released by bcoles. The advisory is shared at raw.githubusercontent.com. This vulnerability is uniquely identified as CVE-2025-34097 since 04/15/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. The exploitation needs additional levels of successful authentication. Technical details and a public exploit are known. MITRE ATT&CK project uses the attack technique T1608.002 for this issue.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept.

Upgrading to version 3.5.4 eliminates this vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (44399) and EUVD (EUVD-2025-21034). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

• ProcessMaker

Version

• 3.5.0
• 3.5.1
• 3.5.2
• 3.5.3

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CPE 2.2info

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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