Vendor / Project: Atlassian Product: Confluence Data Center and Server Description: Atlassian Confluence Data Center and Server contain an improper authorization vulnerability that can result in significant data loss when exploited by an unauthenticated attacker. There is no impact on confidentiality since the attacker cannot exfiltrate any data. Required Action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. Due Date: 2023-11-28 Ransomware Campaign Use: Known CWEs: CWE-863 Notes: https://confluence.atlassian.com/security/cve-2023-22518-improper-authorization-vulnerability-in-confluence-data-center-and-server-1311473907.html; https://nvd.nist.gov/vuln/detail/CVE-2023-22518