# CVE-2023-22518: Atlassian Confluence Data Center and Server Improper Authorization Vulnerability

> CVE-2023-22518: Atlassian Confluence Data Center and Server Improper Authorization Vulnerability. CVSS 10.0 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2023-22518
Last updated: 2025-10-21T23:05:32Z

- Published: 2023-10-31 14:30 UTC · Updated: 2025-10-21 23:05 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: 100.0%, 100th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2023-11-07, federal due date 2023-11-28, ransomware use: Known

## Description

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.

## CISA required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

## 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-2023-22518)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2023-22518)
- [http://packetstormsecurity.com/files/176264/Atlassian-Confluence-Improper-Authorization-Code-Execution.html](http://packetstormsecurity.com/files/176264/Atlassian-Confluence-Improper-Authorization-Code-Execution.html)
- [https://confluence.atlassian.com/pages/viewpage.action?pageId=1311473907](https://confluence.atlassian.com/pages/viewpage.action?pageId=1311473907)
- [https://jira.atlassian.com/browse/CONFSERVER-93142](https://jira.atlassian.com/browse/CONFSERVER-93142)

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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-2023-22518 · Markdown: https://rewindex.com/cve/CVE-2023-22518.md · JSON: https://rewindex.com/api/v1/cves/CVE-2023-22518 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:15:38.500Z