PT-2025-45353 · Advantech · Advantech Webaccess/Vpn

Alex Williams · Published 2025-10-31 · Updated 2025-11-06 · CVE-2025-34236

Positive Technologies (AI Summary)

CVSS v2.0

8.5

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:N

Name of the Vulnerable Software and Affected Versions Advantech WebAccess/VPN versions prior to 1.1.5

Description Advantech WebAccess/VPN versions prior to 1.1.5 contain a stored cross-site scripting (XSS) issue via the NetworksController.addNetworkAction() function. Insufficient validation or escaping of user-supplied input could allow an attacker to inject and execute arbitrary script in the context of a victim’s browser.

Recommendations Update Advantech WebAccess/VPN to version 1.1.5 or later.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

BDU:2025-13985

CVE-2025-34236

Affected Products

Advantech Webaccess/Vpn

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2025-34236 · Security Note
• https://osv.dev/vulnerability/CVE-2025-34236 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-13985 · Security Note
• https://vulncheck.com/advisories/advantech-webaccess-vpn-stored-xss-via-networkcontroller · Note
• https://icr.advantech.com/support/router-models/download/511/sa-2025-01-vpn-portal-2025-11-06.pdf · Patch, Vendor Advisory
• https://icr.advantech.com/download/software · Note
• https://t.me/CVEtracker/36705 · Telegram Post