CVE-2020-6810

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.

Category

4.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.12%
Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox
Published at:
Updated at:

References

Link Tags
https://www.mozilla.org/security/advisories/mfsa2020-08/ vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1432856 issue tracking vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-6810?
CVE-2020-6810 has been scored as a medium severity vulnerability.
How to fix CVE-2020-6810?
To fix CVE-2020-6810, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-6810 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-6810 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-6810?
CVE-2020-6810 affects Mozilla Firefox.
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