CVE-2018-12399 Information

Description

When a new protocol handler is registered the API accepts a title argument which can be used to mislead users about which domain is registering the new protocol. This may result in the user approving a protocol handler that they otherwise would not have. This vulnerability affects Firefox 63.

CVSS Vector

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

Reference

http://www.securityfocus.com/bid/105721 http://www.securitytracker.com/id/1041944 https://bugzilla.mozilla.org/show_bug.cgi?id=1490276 https://usn.ubuntu.com/3801-1/ https://www.mozilla.org/security/advisories/mfsa2018-26/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

LOW

Base Score

NONE

Base Severity

4.3