CVE-2023-6210 Security feature bypass in Firefox

Medium 6.5 Published Updated

Attackers can bypass mixed content protections in Firefox pop-ups, allowing insecure content to load on secure pages.

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-2023-6210?

CVE-2023-6210 is a medium-severity vulnerability in Mozilla Firefox, published on 21 Nov 2023. 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

When an https: web page created a pop-up from a "javascript:" URL, that pop-up was incorrectly allowed to load blockable content such as iframes from insecure http: URLs This vulnerability affects Firefox < 120.

Which versions are affected by CVE-2023-6210?

It affects 1 product.

Products include Mozilla Firefox.

How do I fix CVE-2023-6210?

Upgrade to a fixed version.

Is CVE-2023-6210 being exploited?

There is no known exploitation of CVE-2023-6210 in the wild and no public exploit code.

All Mozilla Firefox vulnerabilities

Sources

Also known as GHSA-7mpv-6jjp-xm5c, UBUNTU-CVE-2023-6210.

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