Stored Cross-Site Scripting Vulnerability in Advantech WISE-DeviceOn Server
CVE-2025-34260

5.1MEDIUM

Key Information:

Vendor

Advantech Co., Ltd.

Status
Wise-deviceon Server
Vendor
CVE Published:
5 December 2025

What is CVE-2025-34260?

Advantech WISE-DeviceOn Server, in versions before 5.4, has a stored cross-site scripting (XSS) vulnerability located in the /rmm/v1/action/schedule endpoint. This occurs when an authenticated user schedules a task; the schedule name is saved and later displayed without proper HTML sanitization. An attacker may exploit this flaw by injecting harmful scripts into the schedule name, which are subsequently executed in the browser of users who access the affected schedule, presenting risks of session hijacking and unauthorized actions.

Affected Version(s)

WISE-DeviceOn Server 0 < 5.4

References

https://advcloudfiles.advantech.com/cms/2ca1b071-fd78-4d7...
vendor-advisorypatch
https://docs.deviceon.advantech.com/docs/resource/
product
https://www.vulncheck.com/advisories/advantech-wise-devic...
third-party-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Alex Williams from Pellera Technologies
JSON
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CVE-2025-34260 : Stored Cross-Site Scripting Vulnerability in Advantech WISE-DeviceOn Server