CVE-2018-5134 Information

Description

WebExtensions may use \view-source:\ URLs to view local \file:\ URL content as well as content stored in \about:cache\ bypassing restrictions that only allow WebExtensions to view specific content. This vulnerability affects Firefox 59.

CVSS Vector

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

Reference

http://www.securityfocus.com/bid/103386 http://www.securitytracker.com/id/1040514 https://bugzilla.mozilla.org/show_bug.cgi?id=1429379 https://usn.ubuntu.com/3596-1/ https://www.mozilla.org/security/advisories/mfsa2018-06/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

7.5