# CVE-2025-34246: Advantech WebAccess/VPN < 1.1.5 SQL Injection via AjaxPrevalidationController.ajaxAction()

> An authenticated low-privileged user can inject SQL via search parameters to disclose database information in Advantech WebAccess/VPN.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 6 Nov 2025
- **Updated:** 17 Nov 2025
- **Also known as:** GHSA-jq34-jj88-v48g

## What is CVE-2025-34246?

CVE-2025-34246 is a medium-severity SQL injection vulnerability in Advantech WebAccess/VPN, published on 6 Nov 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

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

Weakness: CWE-89 (Improper Neutralization of Special Elements used in an SQL Command)

## Which versions are affected by CVE-2025-34246?

It affects 1 product.


Products: Advantech Webaccess\/Vpn.

## How do I fix CVE-2025-34246?

No fix has been published for CVE-2025-34246 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-34246 being exploited?

There is no known exploitation of CVE-2025-34246 in the wild and no public exploit code.

## Other vulnerabilities in Advantech WebAccess/VPN

- [CVE-2025-34239](https://insights.sbomify.com/CVE-2025-34239/): Advantech WebAccess/VPN < 1.1.5 Command Injection in AppManagementController.appUpgradeAction() (high 8.6)
- [CVE-2025-34240](https://insights.sbomify.com/CVE-2025-34240/): Advantech WebAccess/VPN < 1.1.5 SQL Injection via AppManagementController.appUpgradeAction() (high 8.6)
- [CVE-2025-34242](https://insights.sbomify.com/CVE-2025-34242/): Advantech WebAccess/VPN < 1.1.5 SQL Injection via AjaxNetworkController.ajaxAction() (high 8.6)
- [CVE-2025-34238](https://insights.sbomify.com/CVE-2025-34238/): Path traversal in WebAccess/VPN (medium 6.9)
- [CVE-2025-34237](https://insights.sbomify.com/CVE-2025-34237/): Advantech WebAccess/VPN < 1.1.5 Stored XSS via StandaloneVpnClientsController.addStandaloneVpnClientAction() (medium 6.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-34246 and fix it if it is affected.

What it is: CVE-2025-34246 is a medium-severity SQL injection vulnerability in Advantech WebAccess/VPN, published on 6 Nov 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-34246 in the wild and no public exploit code.

Affected product: Advantech WebAccess/VPN. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-34246/ (Markdown: https://insights.sbomify.com/CVE-2025-34246/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-34246
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-34246
- OSV: https://osv.dev/vulnerability/CVE-2025-34246

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-34246/
Summaries are generated and may contain mistakes; the official description above is the record.