CVE-2025-11189 CVE-2025-11189

High 7.3 Published Updated

Reflected XSS in Kiwire Captive Portal allows JavaScript execution via the login-url parameter, potentially compromising user sessions.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-11189?

CVE-2025-11189 is a high-severity cross-site scripting vulnerability in Synchroweb Kiwire, published on 10 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The Kiwire Captive Portal contains a reflected cross-site scripting (XSS) vulnerability within the login-url parameter, allowing for Javascript execution.

Weakness: CWE-79

Which versions are affected by CVE-2025-11189?

It affects 1 product.

Products include Synchroweb Kiwire.

How do I fix CVE-2025-11189?

No fix has been published for CVE-2025-11189 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-2025-11189 being exploited?

There is no known exploitation of CVE-2025-11189 in the wild and no public exploit code.

Sources

Also known as GHSA-g6jq-5hv4-7vjf.

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