CVE-2025-1018

MEDIUM

Firefox < 135.0 - UI Spoofing via Premature Fullscreen Notification Hiding

Title source: llm
STIX 2.1

Description

The fullscreen notification is prematurely hidden when fullscreen is re-requested quickly by the user. This could have been leveraged to perform a potential spoofing attack. This vulnerability was fixed in Firefox 135 and Thunderbird 135.

References (3)

Core 3

Scores

CVSS v3 5.3
EPSS 0.0038
EPSS Percentile 30.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-1021
Status published
Products (4)
mozilla/firefox < 135.0
Mozilla/Firefox 135
mozilla/thunderbird 131.0 - 135.0
Mozilla/Thunderbird 135
Published Feb 04, 2025
Tracked Since Feb 18, 2026