Security News > 2023 > October > Atlassian warns of critical Confluence flaw leading to data loss
Australian software company Atlassian warned admins to immediately patch Internet-exposed Confluence instances against a critical security flaw that could lead to data loss following successful exploitation.
Described as an improper authorization vulnerability affecting all versions of Confluence Data Center and Confluence Server software, the bug is tracked as CVE-2023-22518 and puts publicly accessible instances at critical risk.
"As part of our continuous security assessment processes, we have discovered that Confluence Data Center and Server customers are vulnerable to significant data loss if exploited by an unauthenticated attacker," said Bala Sathiamurthy, Atlassian's Chief Information Security Officer.
The company fixed the critical CVE-2023-22518 vulnerability in Confluence Data Center and Server versions 7.19.16, 8.3.4, 8.4.4, 8.5.3, and 8.6.1.
Earlier this month, CISA, FBI, and MS-ISAC warned network admins to immediately patch Atlassian Confluence servers against an actively exploited privilege escalation flaw tracked as CVE-2023-22515.
Atlassian patches critical Confluence zero-day exploited in attacks.
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Related Vulnerability
| DATE | CVE | VULNERABILITY TITLE | RISK |
|---|---|---|---|
| 2023-10-31 | CVE-2023-22518 | Incorrect Authorization vulnerability in Atlassian Confluence Data Center All versions of Confluence Data Center and Server are affected by this unexploited vulnerability. | 9.8 |
| 2023-10-04 | CVE-2023-22515 | Unspecified vulnerability in Atlassian Confluence Data Center and Confluence Server Atlassian has been made aware of an issue reported by a handful of customers where external attackers may have exploited a previously unknown vulnerability in publicly accessible Confluence Data Center and Server instances to create unauthorized Confluence administrator accounts and access Confluence instances. | 9.8 |