CVE-2024-2610 Cross-site scripting in Firefox

Medium 6.1 Published Updated

Attackers can steal nonce values via markup injection to bypass strict content security policies 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-2024-2610?

CVE-2024-2610 is a medium-severity cross-site scripting vulnerability in Mozilla Firefox, published on 19 Mar 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

Using a markup injection an attacker could have stolen nonce values. This could have been used to bypass strict content security policies. This vulnerability affects Firefox < 124, Firefox ESR < 115.9, and Thunderbird < 115.9.

Weakness: CWE-94

Which versions are affected by CVE-2024-2610?

It affects 2 products.

Products include Mozilla Firefox, Mozilla Thunderbird.

How do I fix CVE-2024-2610?

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-2024-2610 being exploited?

There is no known exploitation of CVE-2024-2610 in the wild and no public exploit code.

All Mozilla Firefox vulnerabilities

Sources

Also known as DEBIAN-CVE-2024-2610, GHSA-mq9m-4hg9-c34x, UBUNTU-CVE-2024-2610.

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