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Mozilla Firefox Spoofing Vulnerability

Vulnerability

A spoofing vulnerability exists in Mozilla Firefox versions prior to 145, as well as in Firefox ESR versions prior to 140.5 and prior to 115.30. This vulnerability allows for the manipulation of user interface elements or user input, potentially leading to deceptive user experiences or interactions.

Impact

Exploitation of this vulnerability could lead to spoofing, where a user is misled about the identity or content of a website or application.

Remediation

Users can upgrade to Firefox 145 or Firefox ESR 140.5 or 115.30 to address this vulnerability.

Added: Nov 11, 2025, 4:31 PM
Updated: Nov 11, 2025, 4:31 PM

Vulnerability Rating

Custom Algorithm
spread
8.4
impact
0.6
exploitability
4.4
remediation
7.7
relevance
0.9
threat
0.0
urgency
2.9
incentive
0.8

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.