Atlassian Confluence Data Center and Server Improper Authorization Vulnerability (CVE-2023-22518)
Severity: critical · Patch status: unknown · Since 2023-11-07 · CVE-2023-22518
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. CISA added CVE-2023-22518 to its Known Exploited Vulnerabilities catalog on Nov 7, 2023, which means attackers are exploiting it in the wild. CISA reports known use in ransomware campaigns.
What to do
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- US federal agencies must remediate by Nov 28, 2023 (BOD 22-01); treat that as the outer limit.
Sources
All live incidents on Threat Watch
