CVE-2026-54303
Medium · 5.4CVSS
5.4
EPSS
0.2%
Published
Jun 23, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | n8n | 0 | 2.24.0 |
Related vulnerabilities
- GHSA-h86q-fx34-gfjr n8n: Reflected XSS via Facebook, WhatsApp, and Microsoft Teams Trigger Webhook… Same vulnerability
- CVE-2026-54308 n8n is an open source workflow automation platform. Also affects n8n
- CVE-2026-54307 n8n is an open source workflow automation platform. Also affects n8n
- CVE-2026-54304 n8n is an open source workflow automation platform. Also affects n8n
- CVE-2026-54305 n8n is an open source workflow automation platform. Also affects n8n
- CVE-2026-54306 n8n is an open source workflow automation platform. Also affects n8n
- CVE-2026-54302 n8n is an open source workflow automation platform. Also affects n8n
- CVE-2026-54301 n8n is an open source workflow automation platform. Also affects n8n