Using XMLHttpRequest, an attacker could have identified installed applications by probing error messages for loading external protocols. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published: 2021-12-08T21:19:42

Updated: 2024-08-04T04:03:08.166Z

Reserved: 2021-11-08T00:00:00

Link: CVE-2021-43542

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2021-12-08T22:15:09.890

Modified: 2022-12-09T15:38:33.677

Link: CVE-2021-43542

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-12-07T00:00:00Z

Links: CVE-2021-43542 - Bugzilla