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

> CVE-2023-22515: Atlassian Confluence Data Center and Server Broken Access Control Vulnerability. CVSS 10.0 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2023-22515
Last updated: 2026-03-25T14:56:37Z

- Published: 2023-10-04 14:00 UTC · Updated: 2026-03-25 14:56 UTC · Assigner: atlassian
- CVSS: 10.0 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- EPSS: 99.2%, 100th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2023-10-05, federal due date 2023-10-13, ransomware use: Known

## 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 required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. Check all affected Confluence instances for evidence of compromise per vendor instructions and report any positive findings to CISA.

## Affected vendors and products

- Atlassian: Confluence Data Center
- Atlassian: Confluence Server

## Tracked companies

- [Confluence](https://rewindex.com/company/confluence.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2023-22515)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2023-22515)
- [http://packetstormsecurity.com/files/175225/Atlassian-Confluence-Unauthenticated-Remote-Code-Execution.html](http://packetstormsecurity.com/files/175225/Atlassian-Confluence-Unauthenticated-Remote-Code-Execution.html)
- [https://confluence.atlassian.com/display/KB/FAQ+for+CVE-2023-22515](https://confluence.atlassian.com/display/KB/FAQ+for+CVE-2023-22515)
- [https://confluence.atlassian.com/pages/viewpage.action?pageId=1295682276](https://confluence.atlassian.com/pages/viewpage.action?pageId=1295682276)
- [https://jira.atlassian.com/browse/CONFSERVER-92475](https://jira.atlassian.com/browse/CONFSERVER-92475)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2023-22515 · Markdown: https://rewindex.com/cve/CVE-2023-22515.md · JSON: https://rewindex.com/api/v1/cves/CVE-2023-22515 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:12:53.076Z