CVE-2025-61687 FlowiseAI/Flosise has File Upload vulnerability

High 8.3 Published Updated

Authenticated users can upload malicious Node.js web shells due to missing validation, potentially leading to remote code execution.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2025-61687?

CVE-2025-61687 is a high-severity vulnerability in Flowiseai Flowise, published on 6 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Flowise is a drag & drop user interface to build a customized large language model flow. A file upload vulnerability in version 3.0.7 of FlowiseAI allows authenticated users to upload arbitrary files without proper validation. This enables attackers to persistently store malicious Node.js web shells on the server, potentially leading to Remote Code Execution (RCE). The system fails to validate file extensions, MIME types, or file content during uploads. As a result, malicious scripts such as Node.js-based web shells can be uploaded and stored persistently on the server. These shells expose HTTP endpoints capable of executing arbitrary commands if triggered. The uploaded shell does not automatically execute, but its presence allows future exploitation via administrator error or chained vulnerabilities. This presents a high-severity threat to system integrity and confidentiality. As of time of publication, no known patched versions are available.

Weakness: CWE-434

Which versions are affected by CVE-2025-61687?

2 open source packages ship an affected version, including flowise. It affects 1 product.

PackageAffectedFixed in
flowise npmFrom 3.0.73.0.8
flowise npmFrom 3.0.73.0.8

Products include Flowiseai Flowise.

How do I fix CVE-2025-61687?

Upgrade flowise to 3.0.8 or later.

Is CVE-2025-61687 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-61687 exists.

All Flowiseai Flowise vulnerabilities

Sources

Also known as GHSA-35g6-rrw3-v6xc.

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