CVE-2025-34261: Advantech WISE-DeviceOn Server < 5.4 Authenticated Stored XSS via devicegroups/
Advantech WISE-DeviceOn Server versions prior to 5.4 contain a stored cross-site scripting (XSS) vulnerability in the /rmm/v1/devicegroups/ endpoint. When an authenticated user creates a device group, the name and description values are stored and later rendered in device group listings without proper HTML sanitation. An attacker can inject malicious script into either field, which is then executed in the browser context of users who view or interact with the affected device group, potentially enabling session compromise and unauthorized actions as the victim.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Advantech WISE-DeviceOn Serverto a version that resolves this vulnerability.Fixed in 5.4 - Configuration
Ensure the /rmm/v1/devicegroups/ endpoint sanitizes/HTML-encodes stored device group 'name' and 'description' before rendering them in device group listings to prevent stored XSS execution in users' browsers.
Advantech WISE-DeviceOn Server (/rmm/v1/devicegroups/) HTML sanitization/encoding for device group name and description = proper HTML sanitation (encode/strip script and HTML)
Event History
Frequently Asked Questions
What is the severity of CVE-2025-34261?
CVE-2025-34261 has a moderate severity rating due to its stored cross-site scripting (XSS) vulnerability that can be exploited by authenticated users.
How do I fix CVE-2025-34261?
To fix CVE-2025-34261, upgrade Advantech WISE-DeviceOn Server to version 5.4 or later.
Who is affected by CVE-2025-34261?
CVE-2025-34261 affects users of Advantech WISE-DeviceOn Server versions prior to 5.4.
What systems are impacted by CVE-2025-34261?
CVE-2025-34261 impacts the /rmm/v1/devicegroups/ endpoint of Advantech WISE-DeviceOn Server.
What type of vulnerability is CVE-2025-34261?
CVE-2025-34261 is a stored cross-site scripting (XSS) vulnerability.