Vulnerabilities > CVE-2021-43540 - Unspecified vulnerability in Mozilla Firefox

047910
CVSS 6.5 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
HIGH
Availability impact
NONE
network
low complexity
mozilla

Summary

WebExtensions with the correct permissions were able to create and install ServiceWorkers for third-party websites that would not have been uninstalled with the extension. This vulnerability affects Firefox < 95.

Vulnerable Configurations

Part Description Count
Application
Mozilla
753