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Advisories

n8n before 1.123.80, 2.39.6, and 2.40.1 Stored DOM XSS via Resource Locator

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severity
medium
date
Affecting

  • n8n >= 0, < 1.123.80

  • n8n >= 2.0.0, < 2.39.6

  • n8n >= 2.40.0, < 2.40.1

CWE
  • CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSS
6.9
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:L/VA:N/SC:L/SI:L/SA:N
Credit
tr4ce-ju
Description
n8n versions before 1.123.80, from 2.0.0 before 2.39.6, and from 2.40.0 before 2.40.1 contain a stored DOM cross-site scripting vulnerability in Resource Locator parameter dropdown link handling. Workflow authors can inject malicious script URLs that execute arbitrary JavaScript in the editor origin when other users open the node dropdown and click the external-link icon, with the payload persisting across workflow imports and shares.

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