CVE-2018-12397

high

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.

References

https://www.mozilla.org/security/advisories/mfsa2018-27/

https://www.mozilla.org/security/advisories/mfsa2018-26/

https://www.debian.org/security/2018/dsa-4324

https://usn.ubuntu.com/3801-1/

https://security.gentoo.org/glsa/201811-04

https://lists.debian.org/debian-lts-announce/2018/11/msg00008.html

https://bugzilla.mozilla.org/show_bug.cgi?id=1487478

https://access.redhat.com/errata/RHSA-2018:3006

https://access.redhat.com/errata/RHSA-2018:3005

http://www.securitytracker.com/id/1041944

http://www.securityfocus.com/bid/105718

Details

Source: Mitre, NVD

Published: 2019-02-28

Risk Information

CVSS v2

Base Score: 3.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:N

Severity: Low

CVSS v3

Base Score: 7.1

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

Severity: High