Privilege Escalation Affecting n8n package, versions <0.216.1
Threat Intelligence
Exploit Maturity
Proof of concept
EPSS
0.17% (56th
percentile)
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Test your applications- Snyk ID SNYK-JS-N8N-5518105
- published 11 May 2023
- disclosed 11 May 2023
- credit Antonie Cervoise, JÉRÔME MAMPIANINAZAKASON
Introduced: 11 May 2023
CVE-2023-27563 Open this link in a new tabHow to fix?
Upgrade n8n to version 0.216.1 or higher.
Overview
n8n is a n8n Workflow Automation Tool
Affected versions of this package are vulnerable to Privilege Escalation when the updateCurrentUser method of the MeController class does not perform sufficient checks before merging a user object with an object controlled by the user.
Exploiting this vulnerability allows an authenticated user to add any attribute in the object sent in the HTTP request body, so it would be merged in the user object without validation.
References
CVSS Scores
version 3.1