CVE-2018-12369

Critical

Description

WebExtensions bundled with embedded experiments were not correctly checked for proper authorization. This allowed a malicious WebExtension to gain full browser permissions. This vulnerability affects Firefox ESR < 60.1 and Firefox < 61.

SeverityCritical

CVSS9.8

Exploit probability—

Product

Mozilla Firefox

PublishedOct 18, 2018

First seenOct 18, 2018

How to fix

Update

mozilla firefox60.1.0, 61.0 or later

Vendor advisories

security.gentoo.org/glsa/201810-01
usn.ubuntu.com/3705-1/

Affected products

Product	Affected versions	Fixed in
mozilla firefox	v < 60.1.0, v < 61.0	60.1.0, 61.0
canonical ubuntu_linux	14.04, 16.04, 17.10, 18.04	—

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