CVE-2021-41306: 
JIRA vulnerability analysis and mitigation

Affected versions of Atlassian Jira Server and Data Center contain an Insecure Direct Object References (IDOR) vulnerability in the Average Time in Status Gadget. The vulnerability, identified as CVE-2021-41306, was discovered and disclosed in October 2021. The affected versions include those before version 8.13.12 and versions from 8.14.0 before 8.20.0 (NVD, Jira Advisory).

The vulnerability is classified with a CVSS v3.1 Base Score of 7.5 (HIGH) and a CVSS v2.0 Base Score of 5.0 (MEDIUM). The vulnerability vector is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N, indicating that it can be exploited over the network with low attack complexity, requires no privileges or user interaction, and primarily impacts confidentiality (NVD).

The vulnerability allows anonymous remote attackers to view private project and filter names through the Average Time in Status Gadget, potentially exposing sensitive project information and internal organizational structure (NVD).

Atlassian has released fixed versions to address this vulnerability. Users should upgrade to version 8.13.12 if running a version before 8.13.12, or to version 8.20.0 or later if running a version between 8.14.0 and 8.20.0 (Jira Advisory).