$ cve CVE-2023-22515 JSON

CVE-2023-22515 KEV

9.8

CRITICAL · CVSS 3.1 · EPSS 99.2% (pctl 100)

Patch first

On CISA KEV — known exploited in the wild, due 2023-10-13.

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.

Scoring

CVSS	9.8 (CRITICAL, v3.1)
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS	99.16% — more likely to be exploited than 100% of all CVEs
Weakness	CWE-20
On CISA KEV	yes — remediate by 2023-10-13
Public exploit	none known
Published	2023-10-04
Last modified	2026-06-17

CISA KEV

Name	Atlassian Confluence Data Center and Server Broken Access Control Vulnerability
Added	2023-10-05
Due	2023-10-13
Vendor / product	Atlassian / Confluence Data Center and Server
Ransomware use	known

Affected (2)

Vendor	Product
atlassian	confluence data center
atlassian	confluence server

References

→ the Explorer · watch your stack · NVD