p PatchFirst

CVE-2026-54303

CVE-2026-54303 · n8n: Reflected XSS via Facebook, WhatsApp, and Microsoft Teams Trigger Webhook Verification Endpoints

This page contains facts from public vulnerability sources. Check the original advisory before updating.

n8n is an open source workflow automation platform. Prior to 2.24.0, an endpoint in the Meta and Microsoft Teams trigger nodes reflects a query parameter into the HTTP response without sanitization or Content-Security-Policy headers, enabling reflected XSS in the n8n origin when a logged-in user visits a crafted URL. This vulnerability is fixed in 2.24.0.

CVSS 6.8 · Medium · EPSS 0.2% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • n8n

    Versions
    • < 2.24.0: Affected

    No fix published

  • n8n npm

    Affected ranges
    • SEMVER: < 2.24.0

    Update to 2.24.0

Original sources

Check your server →