BaseFortify

Publication date: 2025-12-05

Last updated on: 2025-12-17

Assigner: VulnCheck

Description

Advantech WISE-DeviceOn Server versions prior to 5.4 contain a stored cross-site scripting (XSS) vulnerability in the /rmm/v1/action/schedule endpoint. When an authenticated user adds a schedule to an existing task, the schedule name is stored and later rendered in schedule listings without HTML sanitation. An attacker can inject malicious script into the schedule name, which is then executed in the browser context of users who view or interact with the affected schedule, potentially enabling session compromise and unauthorized actions as the victim.

CVSS Scores

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Meta Information

Published

2025-12-05

Last Modified

2025-12-17

Generated

2026-07-06

AI Q&A

2025-12-10

EPSS Evaluated

2026-07-05

NVD

CVE-2025-34260

Affected Vendors & Products

Vendor	Product	Version / Range
advantech	wise-deviceon_server	to 5.4 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-79	The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

Mitigation Strategies

Users are strongly advised to update Advantech WISE-DeviceOn Server to version 5.4 or later, where the vulnerability has been fixed. [1, 3]

Executive Summary

This vulnerability is a stored cross-site scripting (XSS) issue in Advantech WISE-DeviceOn Server versions prior to 5.4. It occurs in the /rmm/v1/action/schedule endpoint where an authenticated user can add a schedule with a name that is stored without proper HTML sanitation. Malicious scripts injected into the schedule name can then be executed in the browsers of users who view or interact with the affected schedule, potentially leading to session compromise and unauthorized actions.

Impact Analysis

This vulnerability can impact you by allowing attackers to execute malicious scripts in your browser when you view or interact with a compromised schedule. This can lead to session hijacking, unauthorized actions performed on your behalf, and potential compromise of sensitive information or control within the affected system.

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