critical CISA KEV Ransomware

CVE-2023-22515

Atlassian Confluence Data Center and Server Broken Access Control Vulnerability

// Description

Atlassian Confluence Data Center and Server contains a broken access control vulnerability that allows an attacker to create unauthorized Confluence administrator accounts and access Confluence.

// Required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. Check all affected Confluence instances for evidence of compromise per vendor instructions and report any positive findings to CISA.

Federal remediation due Oct 13, 2023 — past due

// Coverage

Atlas RAT Deployment: Chinese Actors Target European Defense
Jun 4, 2026