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CVE-2026-56358

n8n

Description

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.

CVSS 5.4EPSS 0.14400000000000002%Risk 0.55
View source
Published
2026-06-24 13:16:36
Affected versions
<1.123.25, <2.11.2
Type
Critical software
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N