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CVE Vulnerability Details :
CVE-2026-54303
PUBLISHED
More InfoOfficial Page
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
View Known Exploited Vulnerability (KEV) details
Published At-23 Jun, 2026 | 15:32
Updated At-23 Jun, 2026 | 15:32
Rejected At-
▼CVE Numbering Authority (CNA)
n8n: Reflected XSS via Facebook, WhatsApp, and Microsoft Teams Trigger Webhook Verification Endpoints

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 Products
Vendor
n8n-io
Product
n8n
Versions
Affected
  • < 2.24.0
Problem Types
TypeCWE IDDescription
CWECWE-79CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Type: CWE
CWE ID: CWE-79
Description: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Metrics
VersionBase scoreBase severityVector
4.06.8MEDIUM
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
Version: 4.0
Base score: 6.8
Base severity: MEDIUM
Vector:
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
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/n8n-io/n8n/security/advisories/GHSA-h86q-fx34-gfjr
x_refsource_CONFIRM
Hyperlink: https://github.com/n8n-io/n8n/security/advisories/GHSA-h86q-fx34-gfjr
Resource:
x_refsource_CONFIRM
Details not found