CVE-2024-8388 Security feature bypass in Firefox

Medium 4.3 Published Updated

Attackers can spoof browser UI by obscuring fullscreen transition notifications on Firefox for Android, potentially misleading users.

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-2024-8388?

CVE-2024-8388 is a medium-severity vulnerability in Mozilla Firefox, published on 3 Sep 2024. 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

Multiple prompts and panels from both Firefox and the Android OS could be used to obscure the notification announcing the transition to fullscreen mode after the fix for CVE-2023-6870 in Firefox 121. This could lead to spoofing the browser UI if the sudden appearance of the prompt distracted the user from noticing the visual transition happening behind the prompt. These notifications now use the Android Toast feature. *This bug only affects Firefox on Android. Other operating systems are unaffected.* This vulnerability affects Firefox < 130.

Weakness: CWE-1021

Which versions are affected by CVE-2024-8388?

It affects 1 product.

Products include Mozilla Firefox.

How do I fix CVE-2024-8388?

Upgrade to a fixed version.

Is CVE-2024-8388 being exploited?

There is no known exploitation of CVE-2024-8388 in the wild and no public exploit code.

All Mozilla Firefox vulnerabilities

Sources

Also known as GHSA-j755-mmjr-g7rh.

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