CVE-2020-6823 Information

Description

A malicious extension could have called codebrowser.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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://bugzilla.mozilla.org/show_bug.cgi?id=1614919 https://www.mozilla.org/security/advisories/mfsa2020-12/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8