VULNERABILITY INTELLIGENCE

CVE-2025-34257

CVSS score5.4 MEDIUM
EPSS probability0.26%
CISA KEVNot currently listed
Published2025-12-05
Last modified2026-09-25
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Description

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

Weakness classification

  • disclosure@vulncheck.com: CWE-79

Primary references