VDB-334572 · CVE-2025-34266 · GCVE-0-2025-34266

Advantech WISE-DeviceOn Server up to 5.3 menus label/path cross site scripting

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.4	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic was found in Advantech WISE-DeviceOn Server up to 5.3. The impacted element is an unknown function of the file /rmm/v1/plugin-config/addins/menus. The manipulation of the argument label/path results in cross site scripting. This vulnerability is reported as CVE-2025-34266. The attack can be launched remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Advantech WISE-DeviceOn Server up to 5.3. It has been classified as problematic. Affected is an unknown function of the file /rmm/v1/plugin-config/addins/menus. The manipulation of the argument label/path with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product 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. This is going to have an impact on integrity. CVE summarizes:

Advantech WISE-DeviceOn Server versions prior to 5.4 contain a stored cross-site scripting (XSS) vulnerability in the /rmm/v1/plugin-config/addins/menus endpoint. When an authenticated user adds or edits an AddIns menu entry, the label and path values are stored in plugin configuration data and later rendered in the AddIns UI 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 AddIns entry, potentially enabling session compromise and unauthorized actions as the victim.

The weakness was disclosed by Alex Williams. The advisory is shared for download at advcloudfiles.advantech.com. This vulnerability is traded as CVE-2025-34266 since 04/15/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

Upgrading to version 5.4 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Advantech

Name

WISE-DeviceOn Server

Version

License

commercial

Website

Vendor: https://www.advantech.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.4
NVD Vector: 🔒

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: WISE-DeviceOn Server 5.4

Timelineinfo

04/15/2025 CVE reserved
12/06/2025 +235 days Advisory disclosed
12/06/2025 +0 days VulDB entry created
12/12/2025 +6 days VulDB entry last update

Sourcesinfo

Vendor: advantech.com

Advisory: advcloudfiles.advantech.com
Researcher: Alex Williams
Status: Confirmed

CVE: CVE-2025-34266 (🔒)
GCVE (CVE): GCVE-0-2025-34266
GCVE (VulDB): GCVE-100-334572

Entryinfo

Created: 12/06/2025 05:07
Updated: 12/12/2025 06:12
Changes: 12/06/2025 05:07 (69), 12/12/2025 06:12 (11)
Complete: 🔍
Cache ID: 216::103