CVE-2020-6823

Published: Apr 24, 2020Modified: Jun 17, 2026

9.8

Vector

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

Exploitability: 3.9 / Impact: 5.9

Source: NVD

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.

Affected (1)

Products: Mozilla: Firefox

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Mozilla Firefox	Before 75.0

Related CWEs

Missing Authorization

The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

References (4)

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

Source: security@mozilla.org

Issue TrackingVendor Advisory

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

Source: security@mozilla.org

Third Party Advisory

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

Source: af854a3a-2127-422b-91ae-364da2661108

Issue TrackingVendor Advisory

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

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

Timeline

No history available yet.