CVE-2026-56358 — n8n - Stored Cross-Site Scripting in Form Trigger Node
n8n before 1.123.25 (1.x) and before 2.11.2 (2.x), with the fix also included in 2.12.0, contains a stored cross-site scripting vulnerability in the Form Trigger node's CSS sani…
Published: 2026-06-24 · CVSS: 5.1 · CVSS 4.0
n8n before 1.123.25 (1.x) and before 2.11.2 (2.x), with the fix also included in 2.12.0, contains a stored cross-site scripting vulnerability in the Form Trigger node's CSS sanitization that allows authenticated users to inject malicious scripts. Attackers with workflow creation permissions can inject XSS payloads that execute persistently for all form visitors, enabling form hijacking and phishing attacks.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7