CVE-2020-6823

Description

A malicious extension could have called <code>browser.identity.launchWebAuthFlow</code>, controlling the redirect_uri, and through the Promise returned, obtain the Auth code and gain access to the user's account at the service provider. This vulnerability affects Firefox < 75.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.30%
Vendor Advisory mozilla.org
Affected: Mozilla Firefox
Published at:
Updated at:

References

Link Tags
https://www.mozilla.org/security/advisories/mfsa2020-12/ third party advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1614919 vendor advisory issue tracking

Frequently Asked Questions

What is the severity of CVE-2020-6823?
CVE-2020-6823 has been scored as a critical severity vulnerability.
How to fix CVE-2020-6823?
To fix CVE-2020-6823, 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-2020-6823 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-6823 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-2020-6823?
CVE-2020-6823 affects Mozilla Firefox.
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