CVE-2026-54303
MEDIUM EPSS 7.4%
Published Jun 23, 20261w ago · Modified Jun 24, 20261w ago
6.8 CVSS 4.0
Published Jun 23, 2026 1w ago
Last Modified Jun 24, 2026 1w ago
Description
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
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 Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction A
Scope X
Threat Intelligence
EPSS Exploit Probability
7.4% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-79 Cross-site Scripting Injection
References 1
- github.com https://github.com/n8n-io/n8n/security/advisories/GHSA-h86q-fx34-gfjr
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.