CVE-2025-34237

Medium · 5.4

CVSS

5.4

EPSS

0.2%

Published

Nov 6, 2025

CISA due date

—

The record

Advantech WebAccess/VPN versions prior to 1.1.5 contain a stored cross-site scripting (XSS) vulnerability via StandaloneVpnClientsController.addStandaloneVpnClientAction(). Insufficient validation or escaping of user-supplied input may allow an attacker to inject and execute arbitrary script in the context of a victim's browser.

Affected packages

Ecosystem	Package	Introduced	Fixed