CVE-2020-6810 Security feature bypass in Firefox
Attackers can spoof browser chrome and obscure fullscreen notifications to trick users into credential theft or other attacks.
- 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-2020-6810?
CVE-2020-6810 is a medium-severity vulnerability in Mozilla Firefox, published on 25 Mar 2020. 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
After a website had entered fullscreen mode, it could have used a previously opened popup to obscure the notification that indicates the browser is in fullscreen mode. Combined with spoofing the browser chrome, this could have led to confusing the user about the current origin of the page and credential theft or other attacks. This vulnerability affects Firefox < 74.
Weakness: CWE-290
Which versions are affected by CVE-2020-6810?
It affects 1 product.
Products include Mozilla Firefox.
How do I fix CVE-2020-6810?
Upgrade to a fixed version.
Is CVE-2020-6810 being exploited?
There is no known exploitation of CVE-2020-6810 in the wild and no public exploit code.
Other vulnerabilities in Mozilla Firefox
Sources
Also known as GHSA-7j8v-jvv6-m8cg, UBUNTU-CVE-2020-6810.