Atlassian Confluence Template Injection RCE (CVE-2023-22527)

Scope: Atlassian Confluence Data Center and Server

Severity: Red

A critical template injection vulnerability in Atlassian Confluence Data Center and Server allows unauthenticated remote attackers to execute arbitrary code on affected deployments. Exploitation enables access to sensitive organizational data, installation of malware or backdoors, privilege escalation, lateral movement, and disruption of business operations. Organizations should patch immediately, restrict Confluence server access to VPNs or trusted networks, and enforce strong authentication with MFA.

The Uganda National CERT and Coordination Center (CERT.UG/CC) encourages users and administrators to review the recommendations and apply the necessary updates.