CVE-2025-34236

Medium

Description

Advantech WebAccess/VPN versions prior to 1.1.5 contain a stored cross-site scripting (XSS) vulnerability via NetworksController.addNetworkAction(). 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.

SeverityMedium
CVSS5.4
Exploit probability—
ProductAdvantech Webaccess\/vpn
PublishedNov 6, 2025
First seenNov 6, 2025

How to fix

Affected products

ProductAffected versionsFixed in
advantech webaccess\/vpnv < 1.1.51.1.5

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.