CVE-2025-71331

Descripción

Flowise before 3.0.8 contains a cross-site scripting (XSS) vulnerability caused by insufficient input filtering in chat messages and custom agent functions. An attacker can inject malicious JavaScript by sending an iframe payload (e.g., <iframe src=-javascript:alert(document.cookie)->) in a chat box, or by having a custom agent function return an XSS payload from an external website. The injected script executes in the victim-s browser, enabling theft of cookies and session data.