CVE-2025-34258 Advantech WISE-DeviceOn Server < 5.4 Authenticated Stored XSS via devicemap/plan
Authenticated attackers can inject malicious scripts into map area names, leading to session compromise and unauthorized actions for other users.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-34258?
CVE-2025-34258 is a medium-severity cross-site scripting vulnerability in Advantech Co., Ltd. WISE-DeviceOn Server, published on 5 Dec 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Advantech WISE-DeviceOn Server versions prior to 5.4 contain a stored cross-site scripting (XSS) vulnerability in the /rmm/v1/devicemap/plan endpoint. When an authenticated user adds an area to a map entry, the name parameter is stored and later rendered in the map list without HTML sanitization. An attacker can inject malicious script into the area name, which is then executed in the browser context of users who view or interact with the affected map entry, potentially enabling session compromise and unauthorized actions as the victim.
Weakness: CWE-79
Which versions are affected by CVE-2025-34258?
It affects 1 product.
Products include Advantech Wise-Deviceon Server.
How do I fix CVE-2025-34258?
No fix has been published for CVE-2025-34258 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2025-34258 being exploited?
There is no known exploitation of CVE-2025-34258 in the wild and no public exploit code.
Other vulnerabilities in Advantech Co., Ltd. WISE-DeviceOn Server
- CVE-2025-34256 Advantech WISE-DeviceOn Server < 5.4 Hard-coded JWT Key Authentication Bypass
- CVE-2025-34257 Advantech WISE-DeviceOn Server < 5.4 Authenticated Stored XSS via action/defined
- CVE-2025-34259 Advantech WISE-DeviceOn Server < 5.4 Authenticated Stored XSS via devicemap/building
- CVE-2025-34260 Advantech WISE-DeviceOn Server < 5.4 Authenticated Stored XSS via action/schedule
- CVE-2025-34261 Advantech WISE-DeviceOn Server < 5.4 Authenticated Stored XSS via devicegroups/
Sources
Also known as GHSA-qqfj-p2gp-5qq5.