CVE-2018-12403

MEDIUM

Firefox < 63.0 - Mixed Content Warning Bypass via Favicon

Title source: llm
STIX 2.1

Description

If a site is loaded over a HTTPS connection but loads a favicon resource over HTTP, the mixed content warning is not displayed to users. This vulnerability affects Firefox < 63.

References (5)

Core 5
Core References
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2018-26/
Issue Tracking, Permissions Required, Vendor Advisory x_refsource_confirm
https://bugzilla.mozilla.org/show_bug.cgi?id=1484753
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/105721
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3801-1/
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1041944

Scores

CVSS v3 5.3
EPSS 0.0050
EPSS Percentile 66.3%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Details

Status published
Products (5)
canonical/ubuntu_linux 14.04
canonical/ubuntu_linux 16.04
canonical/ubuntu_linux 18.04
canonical/ubuntu_linux 18.10
mozilla/firefox < 63.0
Published Feb 28, 2019
Tracked Since Feb 18, 2026