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CVE-2026-56358

n8n - Stored Cross-Site Scripting in Form Trigger Node PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
n8n / n8naffected 0 before 1.123.25; unaffected 1.123.25; affected 2.0.0-rc.0 before 2.11.2; unaffected 2.11.2
n8n / n8naffected 0 before 2.11.2; unaffected 2.11.2
n8n / n8naffected 0 before 1.123.25; unaffected 1.123.25

CWE

CWE-79

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.