CVE-2022-45415 File upload in Firefox

High 7.8 Published Updated

Firefox may save downloaded HTML files with malicious extensions based on page titles, potentially leading to system compromise if executed.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2022-45415?

CVE-2022-45415 is a high-severity vulnerability in Mozilla Firefox, published on 22 Dec 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

When downloading an HTML file, if the title of the page was formatted as a filename with a malicious extension, Firefox may have saved the file with that extension, leading to possible system compromise if the downloaded file was later ran. This vulnerability affects Firefox < 107.

Weakness: CWE-434

Which versions are affected by CVE-2022-45415?

It affects 1 product.

Products include Mozilla Firefox.

How do I fix CVE-2022-45415?

Upgrade to a fixed version.

Is CVE-2022-45415 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-45415 exists.

All Mozilla Firefox vulnerabilities

Sources

Also known as GHSA-jx2q-hvww-224r, UBUNTU-CVE-2022-45415.

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