XSS in Advantech WISE-DeviceOn Server <5.4 via /rmm/v1/devicegroups/
CVE-2025-34261 Published on December 5, 2025
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.
Vulnerability Analysis
CVE-2025-34261 can be exploited with network access. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.
Weakness Type
What is a XSS Vulnerability?
The software 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.
CVE-2025-34261 has been classified to as a XSS vulnerability or weakness.
Products Associated with CVE-2025-34261
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Affected Versions
Advantech Co., Ltd. WISE-DeviceOn Server:- Before 5.4 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.