CVE-2025-11718 Address bar could be spoofed on Android using visibilitychange

Medium 6.5 Published Updated

Attackers can spoof the address bar on Android Firefox by hiding it and injecting a fake one, potentially misleading users about the current site.

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
Available

What is CVE-2025-11718?

CVE-2025-11718 is a medium-severity vulnerability in Mozilla Firefox, published on 14 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

When the address bar was hidden due to scrolling on Android, a malicious page could create a fake address bar to fool the user in response to a visibilitychange event. This vulnerability was fixed in Firefox 144.

Weakness: CWE-451

Which versions are affected by CVE-2025-11718?

It affects 1 product.

Products include Mozilla Firefox.

How do I fix CVE-2025-11718?

Upgrade to a fixed version.

Is CVE-2025-11718 being exploited?

There is no known exploitation of CVE-2025-11718 in the wild and no public exploit code.

All Mozilla Firefox vulnerabilities

Sources

Also known as GHSA-cqj3-wx7w-jfx6, UBUNTU-CVE-2025-11718.

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