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CVE-2025-34262— Advantech WISE-DeviceOn Server < 5.4 Authenticated Stored XSS via devices/name/{agent_id}

Quick assessment

Affected

Advantech Co., Ltd. WISE-DeviceOn Server

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Advantech WISE-DeviceOn Server是中国台湾研华（Advantech）公司的一个物联网设备管理平台软件。 Advantech WISE-DeviceOn Server 5.4之前版本存在跨站脚本漏洞，该漏洞源于/rmm/v1/devices/name/{agent_id}端点未清理HTML，可能导致存储型跨站脚本攻击。

CVSS 5.1 · Medium EPSS 0.21% · P11 Updated Aug 15, 2026

Possible ATT&CK Techniques 2 AI

T1059 · Command and Scripting Interpreter T1189 · Drive-by Compromise

Affected Version Matrix 1

Vendor	Product	Version Range	Status
Advantech Co., Ltd.	WISE-DeviceOn Server	`< 5.4`	affected

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I. Basic Information for CVE-2025-34262

Vulnerability Information

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Vulnerability Title

Advantech WISE-DeviceOn Server < 5.4 Authenticated Stored XSS via devices/name/{agent_id}

Source: CVE Program / CVE List V5

Vulnerability Description

Advantech WISE-DeviceOn Server versions prior to 5.4 contain a stored cross-site scripting (XSS) vulnerability in the /rmm/v1/devices/name/{agent_id} endpoint. When an authenticated user renames a device, the new_name value is stored and later rendered in device listings or detail views without proper HTML sanitation. An attacker can inject malicious script into the device name, which is then executed in the browser context of users who view or interact with the affected device, potentially enabling session compromise and unauthorized actions as the victim.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

Source: CVE Program / CVE List V5

Vulnerability Type

在Web页面生成时对输入的转义处理不恰当(跨站脚本)

Source: CVE Program / CVE List V5

Vulnerability Title

Advantech WISE-DeviceOn Server 跨站脚本漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

Source: CNNVD (China National Vulnerability Database)

CVSS Information

N/A

Source: CNNVD (China National Vulnerability Database)

Vulnerability Type

N/A

Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
Advantech Co., Ltd.	WISE-DeviceOn Server	0 ~ 5.4	-

II. Public POCs for CVE-2025-34262

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2025-34262

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Vendor Advisories for CVE-2025-34262 (1)

Advantech WISE-DeviceOn Server < 5.4 Authenticated Stored XSS via devices/name/{agent_id} | Advisories | VulnCheck third-party-advisory

Other References for CVE-2025-34262 (1)

https://advcloudfiles.advantech.com/cms/2ca1b071-fd78-4d7f-8a2a-7b4537a95d19/Security%20Advisory%20PDF%20File/SECURITY-ADVISORY----DeviceOn-20251208-2.pdf vendor-advisory patch

https://www.cve.org/CVERecord?id=CVE-2025-34262

Same Patch Batch · Advantech Co., Ltd. · 2025-12-05 · 11 CVEs total

CVE-2025-34256	10.0 CRITICAL	Advantech WISE-DeviceOn Server < 5.4 Hard-coded JWT Key Authentication Bypass
CVE-2025-34260	5.1 MEDIUM	Advantech WISE-DeviceOn Server < 5.4 Authenticated Stored XSS via action/schedule
CVE-2025-34261	5.1 MEDIUM	Advantech WISE-DeviceOn Server < 5.4 Authenticated Stored XSS via devicegroups/
CVE-2025-34266	5.1 MEDIUM	Advantech WISE-DeviceOn Server < 5.4 Authenticated Stored XSS via plugin-config/addins/men
CVE-2025-34264	5.1 MEDIUM	Advantech WISE-DeviceOn Server < 5.4 Authenticated Stored XSS via dog/{agentId}
CVE-2025-34258	5.1 MEDIUM	Advantech WISE-DeviceOn Server < 5.4 Authenticated Stored XSS via devicemap/plan
CVE-2025-34257	5.1 MEDIUM	Advantech WISE-DeviceOn Server < 5.4 Authenticated Stored XSS via action/defined
CVE-2025-34263	5.1 MEDIUM	Advantech WISE-DeviceOn Server < 5.4 Authenticated Stored XSS via plugin-config/dashboards
CVE-2025-34265	5.1 MEDIUM	Advantech WISE-DeviceOn Server < 5.4 Authenticated Stored XSS via rule-engines
CVE-2025-34259	5.1 MEDIUM	Advantech WISE-DeviceOn Server < 5.4 Authenticated Stored XSS via devicemap/building

IV. Related Vulnerabilities

Same product: WISE-DeviceOn Server

Same vendor: Advantech Co., Ltd.

Same weakness: CWE-79

V. Comments for CVE-2025-34262

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Goal Reached Thanks to every supporter — we hit 100%!

CVE-2025-34262— Advantech WISE-DeviceOn Server < 5.4 Authenticated Stored XSS via devices/name/{agent_id}

Quick assessment

Possible ATT&CK Techniques 2 AI

Affected Version Matrix 1

I. Basic Information for CVE-2025-34262

Vulnerability Information

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Affected Products

II. Public POCs for CVE-2025-34262

III. Intelligence Information for CVE-2025-34262

Vendor Advisories for CVE-2025-34262 (1)

Other References for CVE-2025-34262 (1)

Same Patch Batch · Advantech Co., Ltd. · 2025-12-05 · 11 CVEs total

IV. Related Vulnerabilities

V. Comments for CVE-2025-34262

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