Unrated severityNVD Advisory· Published Nov 6, 2025· Updated Nov 17, 2025
Advantech WebAccess/VPN < 1.1.5 Stored XSS via NetworksController.addNetworkAction()
CVE-2025-34236
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.
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Affected products
2Patches
Vulnerability mechanics
References
3- icr.advantech.com/support/router-models/download/511/sa-2025-01-vpn-portal-2025-11-06.pdfmitrevendor-advisorypatch
- www.vulncheck.com/advisories/advantech-webaccess-vpn-stored-xss-via-networkcontrollermitrethird-party-advisory
- icr.advantech.com/download/softwaremitreproduct
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