GHSA-q4fm-pjq6-m63g

Source

https://github.com/advisories/GHSA-q4fm-pjq6-m63g

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-q4fm-pjq6-m63g/GHSA-q4fm-pjq6-m63g.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-q4fm-pjq6-m63g

Published

2026-03-27T18:05:47Z

Modified

2026-03-27T18:19:05.701820Z

Severity

5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
5.1 (Medium) CVSS_V4 - 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 CVSS Calculator

Summary

n8n has a Stored XSS Vulnerability in its Form Trigger

Details

Impact

An authenticated user with permission to create or modify workflows could exploit a flaw in the Form Trigger node's CSS sanitization to store a cross-site scripting (XSS) payload. The injected script executes persistently for every visitor of the published form, enabling form submission hijacking and phishing. The existing Content Security Policy prevents direct n8n session cookie theft but does not prevent script execution or form action manipulation.

Patches

The issue has been fixed in n8n versions 2.12.0, 2.11.2, and 1.123.25. Users should upgrade to one of these versions or later to remediate the vulnerability.

Workarounds

If upgrading is not immediately possible, administrators should consider the following temporary mitigations: - Limit workflow creation and editing permissions to fully trusted users only. - Disable the Form Trigger node by adding n8n-nodes-base.formTrigger to the NODES_EXCLUDE environment variable.

These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.

Database specific

{
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-27T18:05:47Z",
    "cwe_ids": [
        "CWE-79"
    ],
    "severity": "MODERATE",
    "nvd_published_at": null
}

References

Affected packages

npm / n8n

Package

Name: n8n; View open source insights on deps.dev
Purl: pkg:npm/n8n

Affected ranges

Type: SEMVER
Events: Introduced

2.0.0-rc.0

Fixed

2.11.2

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-q4fm-pjq6-m63g/GHSA-q4fm-pjq6-m63g.json"

npm / n8n

Package

Name: n8n; View open source insights on deps.dev
Purl: pkg:npm/n8n

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.123.25

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-q4fm-pjq6-m63g/GHSA-q4fm-pjq6-m63g.json"