CVE-2026-54303

EUVD-2026-38460
n8n is an open source workflow automation platform. Prior to 2.24.0, an endpoint in the Meta and Microsoft Teams trigger nodes reflects a query parameter into the HTTP response without sanitization or Content-Security-Policy headers, enabling reflected XSS in the n8n origin when a logged-in user visits a crafted URL. This vulnerability is fixed in 2.24.0.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.4 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 7.37%
Affected Products (NVD)
VendorProductVersion
n8nn8n
𝑥
< 2.24.0
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/n8n-io/n8n/security/advisories/GHSA-h86q-fx34-gfjr