What is CVE-2025-34259?

CVE-2025-34259 is a medium-severity vulnerability in Advantech Wise-deviceon_server, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-12-05.

How severe is CVE-2025-34259?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Advantech Wise-deviceon_server

CVE-2025-34259

Advantech WISE-DeviceOn Server versions prior to 5.4 contain a stored cross-site scripting (XSS) vulnerability in the /rmm/v1/devicemap/building endpoint. When an authenticated user creates a map entry, the name parameter is stored and lat…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (11.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Advantech Wise-deviceon_server
Advantech Co., Ltd. Wise-deviceon Server — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

disclosure@vulncheck.com (vendor-advisory, patch)
disclosure@vulncheck.com (Product, product)
disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2025-34259?: CVE-2025-34259 is a medium-severity vulnerability in Advantech Wise-deviceon_server, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-12-05.
How severe is CVE-2025-34259?: Medium severity. CVSS v3 base score is 5.4 out of 10.