Privilege escalation in Mozilla Firefox - CVE-2018-12396
Published: October 24, 2018 / Updated: October 24, 2018
Vulnerability identifier: #VU15495
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-12396
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Mozilla
Affected software:
Mozilla Firefox
Mozilla Firefox
Detailed vulnerability description
The vulnerability allows a remote attacker to gain elevated privileges on the target system.
The weakness exists due to a WebExtension can run content scripts in disallowed contexts following navigation or other events. A remote attacker can trick the victim into visiting a specially crafted website containing WebExtension where content scripts should not be run and gain elevated privileges.
The weakness exists due to a WebExtension can run content scripts in disallowed contexts following navigation or other events. A remote attacker can trick the victim into visiting a specially crafted website containing WebExtension where content scripts should not be run and gain elevated privileges.
How to mitigate CVE-2018-12396
Update to version 63.0.