CVE-2025-11278 AllStarLink Supermon AllMon2 cross site scripting
Remote attackers can execute arbitrary scripts in user browsers via a cross-site scripting flaw in the AllMon2 component of the unsupported AllStarLink Supermon application.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-11278?
CVE-2025-11278 is a medium-severity cross-site scripting vulnerability in AllStarLink Supermon, published on 5 Oct 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A security vulnerability has been detected in AllStarLink Supermon up to 6.2. This vulnerability affects unknown code of the component AllMon2. The manipulation leads to cross site scripting. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way. This vulnerability only affects products that are no longer supported by the maintainer.
Which versions are affected by CVE-2025-11278?
How do I fix CVE-2025-11278?
No fix has been published for CVE-2025-11278 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-2025-11278 being exploited?
There is no known exploitation of CVE-2025-11278 in the wild and no public exploit code.
Sources
Also known as GHSA-g42p-2jqv-j24r.