CVE-2020-26953

CVE Details

Release Date:	2020-12-09
Impact:	None	What is this?

Description

It was possible to cause the browser to enter fullscreen mode without displaying the security UI; thus making it possible to attempt a phishing attack or otherwise confuse the user. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.

See more information about CVE-2020-26953 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 metrics

Base Score:	4.3
Vector String:	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Version:	3.0
Attack Vector:	Network
Attack Complexity:	Low
Privileges Required:	None
User Interaction:	Required
Scope:	Unchanged
Confidentiality Impact:	None
Integrity Impact:	Low
Availability Impact:	None

Errata information

Platform	Errata	Release Date
Oracle Linux version 6 (firefox)	ELSA-2020-5257	2020-12-01
Oracle Linux version 6 (thunderbird)	ELSA-2020-5238	2020-12-01
Oracle Linux version 7 (firefox)	ELSA-2020-5239	2020-12-01
Oracle Linux version 7 (thunderbird)	ELSA-2020-5235	2020-12-01
Oracle Linux version 8 (firefox)	ELSA-2020-5237	2020-12-01
Oracle Linux version 8 (thunderbird)	ELSA-2020-5236	2020-12-01