Check Point Advisories

Flowise Cross-Site Scripting (CVE-2025-50538)

Check Point Reference: CPAI-2025-4742
Date Published: 20 Nov 2025
Severity: Medium
Last Updated: Thursday 20 November, 2025
Source:
Industry Reference:CVE-2025-50538
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable? Flowise 3.0.5 and prior
Vulnerability Description A cross-site scripting vulnerability in FlowiseAI Flowise allows attackers to inject malicious scripts via an IFRAME element when an admin views the chat log.

Protection Overview

This protection detects attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R81 / R80 / R77 / R75

  1. In the IPS tab, click Protections and find the Flowise Cross-Site Scripting (CVE-2025-50538) protection using the Search tool and Edit the protection's settings.
  2. Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name:  Web Server Enforcement Violation.
Attack Information:  Flowise Cross-Site Scripting (CVE-2025-50538)

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