CVE-2025-34265: CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') in Advantech Co., Ltd. WISE-DeviceOn Server
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.
AI Analysis
Technical Summary
CVE-2025-34265 is a stored cross-site scripting (XSS) vulnerability in Advantech WISE-DeviceOn Server versions prior to 5.4. The vulnerability exists in the /rmm/v1/rule-engines endpoint where authenticated users can create or update rules with fields (min, max, unit) that are stored and later rendered without proper HTML sanitization. This improper neutralization of input (CWE-79) allows injection of malicious scripts that execute in the context of other users' browsers when they view or interact with the affected rules.
Potential Impact
Successful exploitation can lead to execution of arbitrary scripts in the context of other users' browsers, potentially resulting in session hijacking and unauthorized actions performed on behalf of the victim user. The vulnerability requires authenticated access to create or update rules, limiting exposure to users with some level of privilege.
Mitigation Recommendations
No official patch or fix is currently documented. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the rule creation and update functionality to trusted users only and consider monitoring for suspicious activity related to rule modifications.
CVE-2025-34265: CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') in Advantech Co., Ltd. WISE-DeviceOn Server
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 v4.0
Score 5.1medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-34265 is a stored cross-site scripting (XSS) vulnerability in Advantech WISE-DeviceOn Server versions prior to 5.4. The vulnerability exists in the /rmm/v1/rule-engines endpoint where authenticated users can create or update rules with fields (min, max, unit) that are stored and later rendered without proper HTML sanitization. This improper neutralization of input (CWE-79) allows injection of malicious scripts that execute in the context of other users' browsers when they view or interact with the affected rules.
Potential Impact
Successful exploitation can lead to execution of arbitrary scripts in the context of other users' browsers, potentially resulting in session hijacking and unauthorized actions performed on behalf of the victim user. The vulnerability requires authenticated access to create or update rules, limiting exposure to users with some level of privilege.
Mitigation Recommendations
No official patch or fix is currently documented. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the rule creation and update functionality to trusted users only and consider monitoring for suspicious activity related to rule modifications.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2025-04-15T19:15:22.579Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 693316aef88dbe026cfdbe2a
Added to database: 12/05/2025, 17:30:22 UTC
Last enriched: 08/15/2026, 13:42:34 UTC
Last updated: 09/10/2026, 19:36:50 UTC
Views: 187
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