CVE-2020-6810

Mozilla: Focusing a popup while in fullscreen could have obscured the fullscreen notification

Published Mar 25, 2020 CVSS 3.1 · 4.3 Medium EPSS 1.0% KEV · Not listed
Description
After a website had entered fullscreen mode, it could have used a previously opened popup to obscure the notification that indicates the browser is in fullscreen mode. Combined with spoofing the browser chrome, this could have led to confusing the user about the current origin of the page and credential theft or other attacks. This vulnerability affects Firefox < 74.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
EUVD EUVD EUVD-2020-27956 After a website had entered fullscreen mode, it could have used a previously opened popup to obscure the notification that indicates the browser is in fullscreen mode. Combined with spoofing the browser chrome, this could have led to confusing the user about the current origin of the page and credential theft or other attacks. This vulnerability affects Firefox < 74.
Ubuntu USN Ubuntu USN USN-4299-1 Firefox vulnerabilities
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
mozilla
Published
Updated
Aug 4, 2024, 9:11 AM
Reserved
Jan 10, 2020, 12:00 AM
Status
Modified
Published
Mar 25, 2020, 10:15 PM
Modified
Jun 17, 2026, 3:23 AM
Severity
Moderate
Public date
Mar 10, 2020, 12:00 AM