CVE-2026-54303

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 54/100
Published: 2026-06-23 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity Conf. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: Active
S: X
AT: None
VC: High
VI: None
VA: None

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.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
n8n n8n < 2.24.0

References & Advisories (1)

Bug Bounty Relevance

54 / 100
✓ Network accessible
✓ Low complexity

CVSS Score

6.8 / 10.0 v4.0
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

EPSS — Exploitation Probability

0.23%
Raw Score 0.002310
Percentile 14.0%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00231
2026-10-28
0.00231

Intelligence Sources

nvd ref →