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CVE-2018-5112

Published: 23 January 2018

Development Tools panels of an extension are required to load URLs for the panels as relative URLs from the extension manifest file but this requirement was not enforced in all instances. This could allow the development tools panel for the extension to load a URL that it should not be able to access, including potentially privileged pages. This vulnerability affects Firefox < 58.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
firefox
Launchpad, Ubuntu, Debian
upstream
Released (58.0)
xenial
Released (58.0+build6-0ubuntu0.16.04.1)
artful
Released (58.0+build6-0ubuntu0.17.10.1)
bionic
Released (59.0.1+build1-0ubuntu1)
trusty
Released (58.0+build6-0ubuntu0.14.04.1)

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N