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

CISA Known Exploited Vulnerabilities

Name

Atlassian Confluence Data Center and Server Broken Access Control Vulnerability

Vendor

Atlassian

Product

Confluence Data Center and Server

Added to the catalog

2023-10-05

Due date for US federal agencies

2023-10-13

Catalog version

2026.10.30

Atlassian Confluence Data Center and Server contains a broken access control vulnerability that allows an attacker to create unauthorized Confluence administrator accounts and access Confluence.

Required action (CISA)

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.

Ransomware use: CISA marks this vulnerability as known to be used in ransomware campaigns. CISA does not say which group used it.

Links in CISA's notes

• https://confluence.atlassian.com/security/cve-2023-22515-privilege-escalation-vulnerability-in-confluence-data-center-and-server-1295682276.html
• https://nvd.nist.gov/vuln/detail/CVE-2023-22515

Read on 2026-11-02T23:39:54.475Z under licence cisa-kev-cc0@b0067899 from https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

NVD analysis

Status

Analyzed

Published

2023-10-04T14:15:10.440

Last modified

2026-06-17T05:35:37.127

Weaknesses

NVD-CWE-noinfo, CWE-20

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.

References

• http://packetstormsecurity.com/files/175225/Atlassian-Confluence-Unauthenticated-Remote-Code-Execution.html (Exploit, Third Party Advisory, VDB Entry)
• https://confluence.atlassian.com/display/KB/FAQ+for+CVE-2023-22515 (Vendor Advisory)
• https://confluence.atlassian.com/pages/viewpage.action?pageId=1295682276 (Vendor Advisory)
• https://jira.atlassian.com/browse/CONFSERVER-92475 (Issue Tracking, Vendor Advisory)
• http://packetstormsecurity.com/files/175225/Atlassian-Confluence-Unauthenticated-Remote-Code-Execution.html (Exploit, Third Party Advisory, VDB Entry)
• https://confluence.atlassian.com/display/KB/FAQ+for+CVE-2023-22515 (Vendor Advisory)
• https://confluence.atlassian.com/pages/viewpage.action?pageId=1295682276 (Vendor Advisory)
• https://jira.atlassian.com/browse/CONFSERVER-92475 (Issue Tracking, Vendor Advisory)
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-22515 (US Government Resource)

This product uses the NVD API but is not endorsed or certified by the NVD.

Read on 2026-11-02T23:42:08.214Z under licence nvd-api-terms-of-use@ff2a5288 from https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2023-22515

CVE record

Assigner

atlassian

State

PUBLISHED

Published

2023-10-04T14:00:00.820Z

Updated

2026-03-25T14:56:37.404Z

Problem types

BASM (Broken Authentication & Session Management)

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.

References

• 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/pages/viewpage.action?pageId=1295682276
• https://jira.atlassian.com/browse/CONFSERVER-92475

Read on 2026-11-03T02:02:38.768Z under licence cve-terms-of-use@81bfa2f3 from https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2023/22xxx/CVE-2023-22515.json

Defensive techniques (MITRE D3FEND)

D3FEND maps these defensive techniques to the weakness (CWE) that NVD lists for this CVE, through the digital artifacts the weakness affects. D3FEND does not say they stop this vulnerability.

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