#VU72255 Insufficient UI Warning of Dangerous Operations in Mozilla Firefox and Firefox ESR - CVE-2023-25729
Published: February 15, 2023
Vulnerability identifier: #VU72255
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2023-25729
CWE-ID: CWE-357
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Mozilla Firefox
Firefox ESR
Mozilla Firefox
Firefox ESR
Software vendor:
Mozilla
Mozilla
Description
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to missing permissions prompts for opening external schemes were only shown for ContentPrincipals. A malicious extension can open external schemes without user interaction via ExpandedPrincipals and perform other potentially dangerous actions, such as downloading files or interacting with software already installed on the system.
Remediation
Install updates from vendor's website.