CVE-2018-12396

MediumCVSS 6.5/10Last modified Jun 17, 2026

Description

A vulnerability where a WebExtension can run content scripts in disallowed contexts following navigation or other events. This allows for potential privilege escalation by the WebExtension on sites where content scripts should not be run. This vulnerability affects Firefox ESR < 60.3 and Firefox < 63.

Metrics

CVSS 3.0 6.5/10CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Weakness enumeration

CWE-732

Affected software

No affected versions have been published.

Timeline

Published: Feb 28, 2019
Last modified: Jun 17, 2026
NVD status: Modified

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