CVE-2018-12396

Mozilla: WebExtension content scripts can execute in disallowed contexts

Published Feb 28, 2019 CVSS 3.0 · 6.5 Medium EPSS 3.2% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-1571-1 firefox-esr security update
Debian DSA Debian DSA DSA-4324-1 firefox-esr security update
EUVD EUVD EUVD-2018-4370 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.
Ubuntu USN Ubuntu USN USN-3801-1 Firefox vulnerabilities
History

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