CVE-2025-50538: Flowise iframe cross-site scripting vulnerability

# CVE-2025-50538: Flowise iframe cross-site scripting vulnerability

https://gcdradar.vercel.app/incidents/cve-2025-50538-flowise-iframe-cross-site-scripting-vulnerabi · AIR-2025-0032 · closed 2025-10-03

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2025-10-03 (happened 2025-10-06)
- AI role: Attack on AI
- Products: Flowise
- CVE ids: CVE-2025-50538
- CVSS: 9.3

## Summary

Flowise versions before 3.0.5 allow cross-site scripting through iframe elements when viewed by an administrator in chat logs. The vulnerability has been resolved.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2025-10-06: CVE-2025-50538: Flowise before 3.0.5 allows XSS via an IFRAME element when an admin views the chat log. (https://nvd.nist.gov/vuln/detail/CVE-2025-50538)
- 2025-10-03: CVE-2025-50538: Flowise is vulnerable to stored XSS via "View Messages" allows credential theft in FlowiseAI admin panel (https://github.com/advisories/GHSA-964p-j4gg-mhwc)

## Sources

- 2025-10-03 GitHub Advisory Database: CVE-2025-50538: Flowise is vulnerable to stored XSS via "View Messages" allows credential theft in FlowiseAI admin panel https://github.com/advisories/GHSA-964p-j4gg-mhwc
- 2025-10-06 NVD: CVE-2025-50538: Flowise before 3.0.5 allows XSS via an IFRAME element when an admin views the chat log. https://nvd.nist.gov/vuln/detail/CVE-2025-50538

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.