CVE-2022-45418 Other in Firefox

Medium 6.1 Published Updated

A custom CSS cursor could obscure browser UI elements, enabling user confusion or spoofing attacks 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-2022-45418?

CVE-2022-45418 is a medium-severity vulnerability in Mozilla Firefox, published on 22 Dec 2022. 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

If a custom mouse cursor is specified in CSS, under certain circumstances the cursor could have been drawn over the browser UI, resulting in potential user confusion or spoofing attacks. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.

Weakness: CWE-1021

Which versions are affected by CVE-2022-45418?

It affects 3 products.

Products include Mozilla Firefox, Mozilla Firefox Esr, Mozilla Thunderbird.

How do I fix CVE-2022-45418?

Upgrade to a fixed version.

Is CVE-2022-45418 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-45418 exists.

All Mozilla Firefox vulnerabilities

Sources

Also known as DEBIAN-CVE-2022-45418, GHSA-g2g2-6grg-2jm4, UBUNTU-CVE-2022-45418.

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