CVE-2023-25743

HIGH

Firefox Focus - Authentication Bypass by Spoofing via Fullscreen Mode

Title source: llm
STIX 2.1

Description

A lack of in app notification for entering fullscreen mode could have lead to a malicious website spoofing browser chrome.<br>*This bug only affects Firefox Focus. Other versions of Firefox are unaffected.*. This vulnerability affects Firefox < 110 and Firefox ESR < 102.8.

References (3)

Core 3

Scores

CVSS v3 7.5
EPSS 0.0008
EPSS Percentile 24.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-290
Status published
Products (1)
mozilla/firefox_focus
Published Jun 02, 2023
Tracked Since Feb 18, 2026