CVE-2023-22518: Atlassian Confluence Data Center and Server Improper Authorization Vulnerability
All versions of Confluence Data Center and Server are affected by this unexploited vulnerability. This Improper Authorization vulnerability allows an unauthenticated attacker to reset Confluence and create a Confluence instance administrator account. Using this account, an attacker can then perform all administrative actions that are available to Confluence instance administrator leading to - but not limited to - full loss of confidentiality, integrity and availability.
Atlassian Cloud sites are not affected by this vulnerability. If your Confluence site is accessed via an atlassian.net domain, it is hosted by Atlassian and is not vulnerable to this issue.
Other sources
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
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Remove
Remove
Atlassian Confluence Server and Data Centerfrom your environment.Discontinue use of Atlassian Confluence Server and Data Center if vendor-provided mitigations are unavailable (per vendor guidance: "Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable").
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2023-22518.
What is the title of the vulnerability?
The title of the vulnerability is Atlassian Confluence Data Center and Server Improper Authorization Vulnerability.
Which software is affected by this vulnerability?
Confluence Data Center and Server, specifically, Atlassian Confluence Data Center and Server, are affected by this vulnerability.
How severe is the vulnerability?
The severity of the vulnerability is critical, with a severity value of 10.
How can I fix this vulnerability?
To fix this vulnerability, update your Confluence Data Center and Server to a version that includes the security patch provided by Atlassian.