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.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact Low

Subsequent System Integrity Impact Low

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
n8n n8n unaffected
Version Status Constraints
0 affected < 1.123.25
1.123.25 unaffected —
2.0.0-rc.0 affected < 2.11.2
2.11.2 unaffected —
n8n n8n unaffected
Version Status Constraints
0 affected < 2.11.2
2.11.2 unaffected —
n8n n8n unaffected
Version Status Constraints
0 affected < 1.123.25
1.123.25 unaffected —

No data.

No data.

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Vendors Products
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Project Subscriptions

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-q4fm-pjq6-m63g n8n has a Stored XSS Vulnerability in its Form Trigger
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/n8n-io/n8n/security/advisories/GHSA-q4fm-pjq6-m63g cve-icon
https://www.vulncheck.com/advisories/n8n-stored-cross-site-scripting-in-form-trigger-node cve-icon
History

Wed, 24 Jun 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 24 Jun 2026 12:00:00 +0000

Type Values Removed Values Added
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.
Title n8n - Stored Cross-Site Scripting in Form Trigger Node
First Time appeared N8n
N8n n8n
Weaknesses CWE-79
CPEs cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*
Vendors & Products N8n
N8n n8n
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'}

cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-06-24T16:01:44.567Z

Reserved: 2026-06-20T21:16:53.711Z

Link: CVE-2026-56358

cve-icon Vulnrichment

Updated: 2026-06-24T16:01:40.858Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-24T16:04:11Z

Weaknesses