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CVE-2025-34265

Advantech WISE-DeviceOn Server < 5.4 Authenticated Stored XSS via rule-engines

Published: Dec 5, 2025Updated: Dec 17, 2025 Sources: CVE List NVDCWE-79
NVD MITRE
5.4CVSSMEDIUM
EPSS Score
0.2%
Top 94.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

Advantech WISE-DeviceOn Server versions prior to 5.4 contain a stored cross-site scripting (XSS) vulnerability in the /rmm/v1/rule-engines endpoint. When an authenticated user creates or updates a rule for an agent, the rule fields min, max, and unit are stored and later rendered in rule listings or detail views without proper HTML sanitation. An attacker can inject malicious script into one or more of these fields, which is then executed in the browser context of users who view or interact with the affected rule, potentially enabling session compromise and unauthorized actions as the victim.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:RS:CC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-79

Affected Products

WISE-DeviceOn ServerAdvantech Co., Ltd.
On-prem
ICS / OT / IoT / industrial-network
wise-deviceon serveradvantechICS / OT / IoT
advantech co., ltd.commercialICS / OT / IoTaka wise-deviceon server
advantechcommercialTWICS / OT / IoTaka webaccess, advantech webaccess, r-seenet

Attack Graph

Products CVE Techniques Tactics

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Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://advcloudfiles.advantech.com/cms/2ca1b071-fd78-4d7f-8a2a-7b4537a95d19/Security%20Advisory%20PDF%20File/SECURITY-ADVISORY----DeviceOn-20251208-2.pdf
advcloudfiles.advantech.com
https://docs.deviceon.advantech.com/docs/resource/
docs.deviceon.advantech.com
https://www.vulncheck.com/advisories/advantech-wise-deviceon-server-authenticated-stored-xss-via-rulesengine
vulncheck.com

Timeline

Published
Dec 5, 2025
Last Updated
Dec 17, 2025

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