Overview
CVE-2025-34263 is a stored cross-site scripting (XSS) vulnerability affecting Advantech WISE-DeviceOn Server versions prior to 5.4. This vulnerability allows an attacker to inject malicious scripts into the dashboard configuration, which are then executed in the browsers of other users who interact with the compromised dashboard. This can lead to session hijacking and unauthorized actions.
Technical Details
The vulnerability resides in the /rmm/v1/plugin-config/dashboards/menus endpoint. Authenticated users can add or edit dashboard entries, specifying labels and paths. These values are stored in the plugin configuration data and subsequently rendered in the dashboard UI without proper HTML sanitization.
An attacker can exploit this by injecting malicious JavaScript code into either the label or path field during dashboard creation or modification. When another user accesses the affected dashboard, the injected script will be executed within their browser context. This allows the attacker to potentially:
- Steal session cookies and hijack the user’s session.
- Perform actions on behalf of the user without their knowledge.
- Redirect the user to a malicious website.
- Deface the dashboard interface.
CVSS Analysis
At the time of writing, the CVSS score for CVE-2025-34263 is not yet available (N/A) by NVD or FIRST. However, based on the nature of the stored XSS vulnerability, a high severity score is anticipated. The impact is significant due to the potential for complete account compromise and unauthorized actions.
Possible Impact
The exploitation of CVE-2025-34263 can have severe consequences, including:
- Account Compromise: Attackers can steal user credentials and gain unauthorized access to sensitive data and functionalities.
- Data Breach: If the compromised user has access to sensitive data within the WISE-DeviceOn Server, the attacker could potentially exfiltrate that data.
- System Manipulation: An attacker might be able to modify system configurations or deploy malicious software through the compromised account, depending on the permissions of the victim user.
- Reputation Damage: A successful attack can significantly damage the reputation of the organization using the affected Advantech WISE-DeviceOn Server.
Mitigation and Patch Steps
The recommended mitigation is to upgrade to Advantech WISE-DeviceOn Server version 5.4 or later. This version includes a fix for the stored XSS vulnerability.
To mitigate the risk before upgrading, consider the following:
- Input Validation: Strictly validate and sanitize all user inputs, especially those related to dashboard labels and paths. Implement server-side HTML encoding to prevent malicious scripts from being rendered.
- Principle of Least Privilege: Limit the privileges of users who can create or modify dashboards.
- Web Application Firewall (WAF): Deploy a WAF to filter out malicious requests and prevent XSS attacks.
References
Advantech Security Advisory
Advantech WISE-DeviceOn Documentation
VulnCheck Advisory
