CVE-2018-12397

Mozilla: WebExtension local file permission check bypass

Published Feb 28, 2019 CVSS 3.0 · 7.1 High EPSS < 1% KEV · Not listed
Description
A WebExtension can request access to local files without the warning prompt stating that the extension will "Access your data for all websites" being displayed to the user. This allows extensions to run content scripts in local pages without permission warnings when a local file is opened. 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-2018-4371 A WebExtension can request access to local files without the warning prompt stating that the extension will "Access your data for all websites" being displayed to the user. This allows extensions to run content scripts in local pages without permission warnings when a local file is opened. This vulnerability affects Firefox ESR < 60.3 and Firefox < 63.
Ubuntu USN Ubuntu USN USN-3801-1 Firefox vulnerabilities
History
Type Values Removed Values Added
CPEs cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
Vendors & Products Mozilla firefox Esr