CVE-2023-4051

Full screen notification obscured by file open dialog

Published Aug 1, 2023 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
A website could have obscured the full screen notification by using the file open dialog. This could have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 116, Firefox ESR < 115.2, and Thunderbird < 115.2.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2023-53942 A website could have obscured the full screen notification by using the file open dialog. This could have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 116, Firefox ESR < 115.2, and Thunderbird < 115.2.
Ubuntu USN Ubuntu USN USN-6267-1 Firefox vulnerabilities
History
Type Values Removed Values Added
Title Mozilla: Full screen notification obscured by file open dialog Full screen notification obscured by file open dialog
Type Values Removed Values Added
First Time appeared Mozilla firefox Esr
Mozilla thunderbird
CPEs cpe:2.3:a:mozilla:firefox:-:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox_esr:-:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:-:*:*:*:*:*:*:*
Vendors & Products Mozilla firefox Esr
Mozilla thunderbird
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mozilla
Published
Updated
Dec 18, 2025, 3:23 PM
Reserved
Aug 1, 2023, 2:58 PM
Status
Modified
Published
Aug 1, 2023, 3:15 PM
Modified
Jun 17, 2026, 6:36 AM
Severity
Moderate
Public date
Aug 29, 2023, 12:00 AM