CVE-2025-34237 — MEDIUM (5.4)

Q: How severe is CVE-2025-34237?

CVE-2025-34237 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2025-34237?

Check the references section above for vendor advisories and patch information. Affected products include: Advantech Webaccess\/Vpn.

Vulnerability 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.

CVSS Score

5.4

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Advantech	Webaccess\/Vpn	< 1.1.5

Related Weaknesses (CWE)

CWE-79

References

https://icr.advantech.com/download/softwareProduct
https://icr.advantech.com/support/router-models/download/511/sa-2025-01-vpn-portRelease Notes
https://www.vulncheck.com/advisories/advantech-webaccess-vpn-stored-xss-via-stanThird Party Advisory

FAQ

What is CVE-2025-34237?

CVE-2025-34237 is a vulnerability with a CVSS score of 5.4 (MEDIUM). Advantech WebAccess/VPN versions prior to 1.1.5 contain a stored cross-site scripting (XSS) vulnerability via StandaloneVpnClientsController.addStandaloneVpnClientAction(). Insufficient validation or ...

How severe is CVE-2025-34237?

CVE-2025-34237 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-34237?

Check the references section above for vendor advisories and patch information. Affected products include: Advantech Webaccess\/Vpn.