Answer in brief
CVE-2025-34261 records a Unknown severity vulnerability in Advantech WISE-DeviceOn Server < 5.4 Authenticated Stored XSS via devicegroups/. The current sources do not mark it as known exploited. The current feed maps Advantech Co., Ltd./WISE-DeviceOn Server (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Advantech Co., Ltd./WISE-DeviceOn Server (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Advantech Co., Ltd./WISE-DeviceOn Servergeneric | >=0 <5.4 | 5.4 |
Published upstream
Dec 5, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 14, 2026
Advantech WISE-DeviceOn Server versions prior to 5.4 contain a stored cross-site scripting (XSS) vulnerability in the /rmm/v1/devicegroups/ endpoint. When an authenticated user creates a device group, the name and description values are stored and later rendered in device group listings 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 device group, potentially enabling session compromise and unauthorized actions as the victim.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2025-34261 records a Unknown severity vulnerability in Advantech WISE-DeviceOn Server < 5.4 Authenticated Stored XSS via devicegroups/. The current sources do not mark it as known exploited. The current feed maps Advantech Co., Ltd./WISE-DeviceOn Server (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Advantech Co., Ltd./WISE-DeviceOn Server (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Advantech Co., Ltd./WISE-DeviceOn Servergeneric | >=0 <5.4 | 5.4 |
Published upstream
Dec 5, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 14, 2026
Advantech WISE-DeviceOn Server versions prior to 5.4 contain a stored cross-site scripting (XSS) vulnerability in the /rmm/v1/devicegroups/ endpoint. When an authenticated user creates a device group, the name and description values are stored and later rendered in device group listings 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 device group, potentially enabling session compromise and unauthorized actions as the victim.
Quoted source text, attributed separately from HOL analysis.