The bundled version of Atlassian Navigator Links contained an incorrect authorization check - CVE-2020-4026

The bundled version of Atlassian Navigator Links plugin in Atlassian Fisheye before version 4.8.2 allows remote attackers to enumerate all linked applications, including those that are restricted or otherwise hidden, through an incorrect authorization check. Additional details about the issue in the Atlassian Navigator Links plugin can be found below.

The CustomAppsRestResource list resource in Atlassian Navigator Links before version 3.3.23, from version 4.0.0 before version 4.3.7, from version 5.0.0 before 5.0.1, and from version 5.1.0 before 5.1.1 allows remote attackers to enumerate all linked applications, including those that are restricted or otherwise hidden, through an incorrect authorization check.