Security Advisory

CVE-2021-43542

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2021-12-08 21:19:42

Last updated 2024-08-04 04:03:08

Assigner mozilla

State PUBLISHED

Description

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.

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