CVEvulnerability
CVE-2025-71331
5.1 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-06-20
- Last modified
- 2026-10-19
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 5.1 MEDIUM — CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 ([email protected])
- 6.1 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Weaknesses
- CWE-80
Description
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.
Affected configurations
• flowiseai flowise (< 3.0.8)
Related
Weakness · CWE (1)
- CWE-80 Improper Neutralization of Script-Related HTML Tags in a Web Page weakness
References
- https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-4fr9-3x69-36wv Exploit, Vendor Advisory
- https://www.vulncheck.com/advisories/flowise-cross-site-scripting-in-chat-messages-and-agent-workflows Third Party Advisory
- https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-4fr9-3x69-36wv Exploit, Vendor Advisory