By rewriting the Host: request headers using the webRequest API, a WebExtension can bypass domain restrictions through domain fronting. This would allow access to domains that share a host that are otherwise restricted. This vulnerability affects Firefox ESR < 60.3 and Firefox < 63.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published: 2019-02-28T18:00:00

Updated: 2024-08-05T08:30:59.771Z

Reserved: 2018-06-14T00:00:00

Link: CVE-2018-12395

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2019-02-28T18:29:00.743

Modified: 2019-10-03T00:03:26.223

Link: CVE-2018-12395

cve-icon Redhat

Severity : Moderate

Publid Date: 2018-10-23T00:00:00Z

Links: CVE-2018-12395 - Bugzilla