XSS in Advantech Wise-Deviceon Server
CVE-2025-34262
Advantech WISE-DeviceOn Server versions prior to 5.4 contain a stored cross-site scripting (XSS) vulnerability in the /rmm/v1/devices/name/{agent_id} endpoint. When an authenticated user renames a device, the new_name value is stored and later rendered in device listings or detail views without proper HTML sanitation. An attacker can inject malicious script into the device name, which is then executed in the browser context of users who view or interact with the affected device, potentially enabling session compromise and unauthorized actions as the victim.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.002 (10.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 10th percentile — 10.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
Weakness classification (CWE)
References
- advcloudfiles.advantech.com/cms/2ca1b071-fd78-4d7f-8a2a-7b4537a95d19/Security A… (vendor-advisory, patch)
- docs.deviceon.advantech.com/docs/resource/ (Product, product)
- www.vulncheck.com/advisories/advantech-wise-deviceon-server-authenticated-store… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2025-34262?
- CVE-2025-34262 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-2025-34262?
- Medium severity. CVSS v3 base score is 5.4 out of 10.