CVE-2024-10460 Security feature bypass in Firefox

Medium 5.4 Published Updated

Attackers can obscure the origin of external protocol handler prompts using data URLs in iframes, bypassing security warnings in Firefox and Thunderbird.

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-2024-10460?

CVE-2024-10460 is a medium-severity vulnerability in Mozilla Firefox, published on 29 Oct 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

The origin of an external protocol handler prompt could have been obscured using a data: URL within an `iframe`. This vulnerability affects Firefox < 132, Firefox ESR < 128.4, Thunderbird < 128.4, and Thunderbird < 132.

Weakness: CWE-346

Which versions are affected by CVE-2024-10460?

It affects 2 products.

Products include Mozilla Firefox, Mozilla Thunderbird.

How do I fix CVE-2024-10460?

Upgrade to a fixed version.

Is CVE-2024-10460 being exploited?

There is no known exploitation of CVE-2024-10460 in the wild and no public exploit code.

All Mozilla Firefox vulnerabilities

Sources

Also known as DEBIAN-CVE-2024-10460, GHSA-jv24-5j5x-m8w6, UBUNTU-CVE-2024-10460.

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