CVE-2018-5132

MEDIUM

Firefox < 59.0 - Unauthorized Data Exposure via WebExtension Find API

Title source: llm
STIX 2.1

Description

The Find API for WebExtensions can search some privileged pages, such as "about:debugging", if these pages are open in a tab. This could allow a malicious WebExtension to search for otherwise protected data if a user has it open. This vulnerability affects Firefox < 59.

References (5)

Core 5
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/103386
Issue Tracking, Permissions Required, Third Party Advisory x_refsource_confirm
https://bugzilla.mozilla.org/show_bug.cgi?id=1408194
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1040514
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3596-1/
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2018-06/

Scores

CVSS v3 6.5
EPSS 0.0091
EPSS Percentile 76.2%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Details

CWE
CWE-200
Status published
Products (4)
canonical/ubuntu_linux 14.04
canonical/ubuntu_linux 16.04
canonical/ubuntu_linux 17.10
mozilla/firefox < 59.0
Published Jun 11, 2018
Tracked Since Feb 18, 2026