SARA / Free Tools / CVE / CVE-2023-22515

CVE-2023-22515 — Atlassian Confluence Data Center and Server Broken Access Control Vulnerability

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

CVSS
10.0 CRITICAL
EPSS
94.33% (top 0.10%)
CWE
Published
2023-10-04T14:00:00.820Z
Last modified
2025-10-21T23:05:35.521Z
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CISA KEV — Actively Exploited
Added to KEV
2023-10-05
BOD 22-01 due
2023-10-13
Ransomware use
Known

01What is this vulnerability?

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.

02Affected products

VendorProductVersions
AtlassianConfluence Data Center< 8.0.0, >= 8.0.0, >= 8.0.1, >= 8.0.2, >= 8.0.3, >= 8.1.3, >= 8.1.4, >= 8.2.0, >= 8.2.1, >= 8.2.2, >= 8.2.3, >= 8.3.0, >= 8.3.1, >= 8.3.2, >= 8.4.0, >= 8.4.1, >= 8.4.2, >= 8.5.0, >= 8.5.1, >= 8.3.3, >= 8.4.3, >= 8.5.2
AtlassianConfluence Server< 8.0.0, >= 8.0.0, >= 8.0.1, >= 8.0.2, >= 8.0.3, >= 8.1.3, >= 8.1.4, >= 8.2.0, >= 8.2.1, >= 8.2.2, >= 8.2.3, >= 8.3.0, >= 8.3.1, >= 8.3.2, >= 8.4.0, >= 8.4.1, >= 8.4.2, >= 8.5.0, >= 8.5.1, >= 8.3.3, >= 8.4.3, >= 8.5.2

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2023-10-05. Ransomware use: Known.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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