CVE-2023-22515
Atlassian Confluence Data Center and Server Broken Access Control Vulnerability
Published Oct 4, 2023 · updated Jun 16, 2026 · atlassian confluence data center
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.
Timeline
Detection, updates, and resolution for this record.
Oct 4, 2023 · Catalog
Detected
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 i
Oct 5, 2023 · CISA KEV
Known exploited
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.
Oct 13, 2023 · CISA KEV
Remediation due
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.
Jun 16, 2026 · Catalog
Updated
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 i
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.
CISA due date Oct 13, 2023
Affected
- cpe atlassian/confluence data centerversion unspecified
- cpe atlassian/confluence serverversion unspecified
- vendor Atlassian Confluence Data Center and Serverversion unspecified
Sources
- CISA KEVCVE-2023-22515
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.
cisa.gov - CVE.orgCVE-2023-22515
Official CVE identifier
cve.org - FIRST EPSSCVE-2023-22515
30-day exploitation probability 99.2%
first.org - Metasploit Modulesauxiliary_admin/http/atlassian_confluence_auth_bypass
Public module reference (normal). Module source is not copied into this catalog.
rapid7.com - Metasploit Modulesexploit_multi/http/atlassian_confluence_rce_cve_2023_22515
Public module reference (excellent). Module source is not copied into this catalog.
rapid7.com - NIST NVDCVE-2023-22515
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
nvd.nist.gov - Packet Storm Securityhttp://packetstormsecurity.com/files/175225/Atlassian-Confluence-Unauthenticated-Remote-Code-Execution.html
Packet Storm link already published on the finding.
packetstormsecurity.com