Vulnerability · Published Nov 6, 2025 · Assigned by VulnCheck

CVE-2025-34240Advantech WebAccess/VPN < 1.1.5 SQL Injection via AppManagementController.appUpgradeAction()

High 8.6

In plain English

A high-severity SQL injection in WebAccess/VPN from Advantech. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 24% of all known vulnerabilities).

Severity (CVSS 4.0)8.6High

Exploit odds (30 days)0.3%top 75.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Advantech WebAccess/VPN versions prior to 1.1.5 contain a SQL injection vulnerability in AppManagementController.appUpgradeAction() that allows an authenticated low-privileged observer user to inject SQL via datatable search parameters, leading to disclosure of database information.

Affected products (as reported)

Vendor	Product	Versions
Advantech	WebAccess/VPN	0 – before 1.1.5

Weakness: CWE-89 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

References

https://icr.advantech.com/support/router-models/download/511/sa-2025-01-vpn-portal-2025-11-06.pdf vendor-advisory, patch
https://www.vulncheck.com/advisories/advantech-webaccess-vpn-sqli-via-appmanagementcontroller-appupgradeaction third-party-advisory
https://icr.advantech.com/download/software product