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Cross-site Scripting (XSS)

🗓️ 29 Apr 2026 21:23:04Reported by Snyk Security DatabaseType 
snyk
 snyk
🔗 security.snyk.io👁 22 Views

XSS in n8n-editor-ui via client_name in MCP OAuth, risking credential theft and workflow control.

Related
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-42235
4 May 202618:38
–attackerkb
bdu_fstec
BDU FSTEC
N8n MCP OAuth XSS
15 May 202600:00
–bdu_fstec
circl
Circl
CVE-2026-42235
4 May 202621:11
–circl
cnnvd
CNNVD
n8n Cross-site Scripting Vulnerabilities
4 May 202600:00
–cnnvd
cve
CVE
CVE-2026-42235
4 May 202618:38
–cve
cvelist
Cvelist
CVE-2026-42235 n8n: XSS via MCP OAuth client
4 May 202618:38
–cvelist
euvd
EUVD
EUVD-2026-27110
4 May 202618:38
–euvd
github
Github Security Blog
n8n Vulnerable to XSS via MCP OAuth client
29 Apr 202621:23
–github
mend
Mend
CVE-2026-42235
4 May 202618:38
–mend
nvd
NVD
CVE-2026-42235
4 May 202619:16
–nvd
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07 May 2026 01:14Current
7.9High risk
Vulners AI Score7.9
CVSS 3.19.6
CVSS 48.8
EPSS0.00505
SSVC
22