CVE-2024-10461 Cross-site scripting in Firefox

Medium 6.1 Published Updated

Attackers can execute arbitrary scripts in Firefox or Thunderbird via multipart responses that bypass attachment headers, requiring users to upgrade.

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-2024-10461?

CVE-2024-10461 is a medium-severity cross-site scripting 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

In multipart/x-mixed-replace responses, `Content-Disposition: attachment` in the response header was not respected and did not force a download, which could allow XSS attacks. This vulnerability affects Firefox < 132, Firefox ESR < 128.4, Thunderbird < 128.4, and Thunderbird < 132.

Weakness: CWE-79

Which versions are affected by CVE-2024-10461?

It affects 2 products.

Products include Mozilla Firefox, Mozilla Thunderbird.

How do I fix CVE-2024-10461?

Upgrade to a fixed version.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2024-10461 being exploited?

There is no known exploitation of CVE-2024-10461 in the wild and no public exploit code.

All Mozilla Firefox vulnerabilities

Sources

Also known as DEBIAN-CVE-2024-10461, GHSA-679j-4q32-w85w, UBUNTU-CVE-2024-10461.

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