CVE-2026-54303

published 2026-06-23

CVE-2026-54303: 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…

Priority P4 27 medium 5.4 CVSS 3.1

AV N AC L PR L UI R S C C L I L A N

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.

Affected

3 ranges

Vendor	Product	Version range	Fixed in
n8n-io	n8n	< 2.24.0	2.24.0
n8n	n8n	< 2.24.0	2.24.0
n8n	n8n	>= 0 < 2.24.0	2.24.0

CVSS provenance

nvd v3.1 5.4 MEDIUM CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

nvd v4.0 6.8 MEDIUM CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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CWE-79