CRITICAL CISA KEV

CVE-2023-22515

CVSS v3

9.8

CRITICAL

EPSS Score

94.3%

exploit probability

CISA KEV

Yes

known exploited

Exploitation

SSVC status

Description

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. 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.

CISA Known Exploited Vulnerability

Date Added
10/5/2023
Patch Due Date
10/13/2023
Ransomware Use
Known

Technical details

Published
10/4/2023

Frequently asked questions

What is CVE-2023-22515?

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. 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.

Is CVE-2023-22515 actively exploited?

Yes. CVE-2023-22515 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 10/13/2023.

What is the CVSS score for CVE-2023-22515?

CVE-2023-22515 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2023-22515 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.