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    CVE-2025-34237

    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.

    Published:Nov 6, 2025
    Last Modified:Nov 28, 2025
    EPS:Nov 6, 2025
    EPSS Score:0.00049
    CVSS Score:5.4

    Affected Products

    Vendor
    Advantech
    Product
    Webaccess/vpn
    Vendor
    Advantech
    Product
    Webaccess\/vpn

    Exploits

    No exploit reference

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High