CVE-2025-34237
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-11-06

Last updated on: 2025-11-28

Assigner: VulnCheck

Description
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.
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Meta Information
Published
2025-11-06
Last Modified
2025-11-28
Generated
2026-06-16
AI Q&A
2025-11-06
EPSS Evaluated
2026-06-15
NVD
CVE-2025-34237
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
advantech webaccess\/vpn to 1.1.5 (exc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
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Executive Summary

This vulnerability is a stored cross-site scripting (XSS) issue in Advantech WebAccess/VPN versions prior to 1.1.5. It occurs in the StandaloneVpnClientsController.addStandaloneVpnClientAction() function, where insufficient validation or escaping of user-supplied input allows an attacker to inject and execute arbitrary scripts in the context of a victim's browser.

Impact Analysis

An attacker exploiting this vulnerability can execute arbitrary scripts in a victim's browser, potentially leading to session hijacking, theft of sensitive information, or performing actions on behalf of the victim without their consent.

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