BaseFortify

Publication date: 2025-11-06

Last updated on: 2025-12-04

Assigner: VulnCheck

Description

Advantech WebAccess/VPN versions prior to 1.1.5 contain an absolute path traversal via AjaxStandaloneVpnClientsController.ajaxDownloadRoadWarriorConfigFileAction() that allows an authenticated network administrator to cause the application to read and return the contents of arbitrary files the web user (www-data) can access.

CVSS Scores

EPSS Scores

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Meta Information

Published

2025-11-06

Last Modified

2025-12-04

Generated

2026-07-06

AI Q&A

2025-11-06

EPSS Evaluated

2026-07-05

NVD

CVE-2025-34238

Affected Vendors & Products

Vendor	Product	Version / Range
advantech	webaccess\/vpn	to 1.1.5 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-22	The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

Attack-Flow Graph

Executive Summary

This vulnerability is an absolute path traversal in Advantech WebAccess/VPN versions prior to 1.1.5. It occurs in the AjaxStandaloneVpnClientsController.ajaxDownloadRoadWarriorConfigFileAction() function, allowing an authenticated network administrator to make the application read and return the contents of arbitrary files that the web user (www-data) can access.

Impact Analysis

An attacker with authenticated network administrator privileges can exploit this vulnerability to read arbitrary files accessible by the web user. This could lead to unauthorized disclosure of sensitive information stored on the system, potentially compromising system security and confidentiality.

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