CVE-2020-6823

critical

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.

References

https://www.mozilla.org/security/advisories/mfsa2020-12/

https://bugzilla.mozilla.org/show_bug.cgi?id=1614919

Details

Source: Mitre, NVD

Published: 2020-04-24

Updated: 2021-07-21

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical