CVE-2018-12399

MediumCVSS 4.3/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.0 4.3/10CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Weakness enumeration

CWE-287

Affected software

No affected versions have been published.

Timeline

Published: Feb 28, 2019
Last modified: Jun 17, 2026
NVD status: Modified

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