Volerion logoVolerion
Volerion logoVolerion

Mozilla Firefox and Firefox ESR Clickjacking Vulnerability in PDF Viewer Component

Vulnerability

A clickjacking vulnerability leading to information disclosure has been identified in the PDF Viewer component of Mozilla Firefox. This issue affects Firefox versions prior to 147 and Firefox ESR versions prior to 140.7.

Impact

Exploitation of this vulnerability could result in clickjacking, allowing an attacker to manipulate a user's interaction with the PDF Viewer component, potentially leading to unauthorized information disclosure.

Remediation

Users can upgrade to Firefox 147 or Firefox ESR 140.7 to address this vulnerability.

Added: Jan 13, 2026, 2:27 PM
Updated: Jan 13, 2026, 10:02 PM

Vulnerability Rating

Custom Algorithm
spread
8.4
impact
2.5
exploitability
4.4
remediation
7.7
relevance
2.0
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.