PT-2026-51782 · N8N · N8N

Tr4Ce-Ju · Publicado 2026-06-24 · Atualizado 2026-06-24 · CVE-2026-56358

Mitre

CVSS v3.1

5.4

Média

Vetor base

AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

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.

Correção

XSS

Enumeração de Fraquezas

CWE-79

Identificadores relacionados

CVE-2026-56358

Produtos afetados

N8N

Referências · 3

• https://github.com/n8n-io/n8n/security/advisories/GHSA-q4fm-pjq6-m63g · Aviso do Fabricante
• https://vulncheck.com/advisories/n8n-stored-cross-site-scripting-in-form-trigger-node · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-56358 · Nota de Segurança