Security readout for executives and security teams
CVE-2023-22515 lets unauthenticated external attackers compromise publicly reachable Atlassian Confluence Data Center or Server instances by creating unauthorized administrator accounts. Atlassian Cloud sites on atlassian.net are not affected. Because administrator access can expose sensitive wiki content and control the application, this is a board-level incident risk. Highest exposure is internet-facing Confluence Data Center or Server. Internal-only instances still matter if reachable from untrusted networks. Atlassian Cloud at atlassian.net is explicitly not affected. Treat this as an emergency for any self-managed Confluence. Internet-facing systems should be remediated or isolated immediately, then investigated for unauthorized administrator creation and data access. Mitigation focus: Identify all Confluence Server and Data Center instances.; Prioritize publicly accessible instances for immediate action.; Apply Atlassian’s recommended fixed version or mitigation..
Michael Williams reviewed this cited source version on .
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Open ATT&CK lookupCVE-2023-22515 mapping review
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Open ATT&CK lookup- Severity
- Critical
- CVSS
- 10 (3.0)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
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CISA KEV status
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H3.96Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
10CriticalVector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://confluence.atlassian.com/display/KB/FAQ+for+CVE-2023-22515CVE reference
- https://confluence.atlassian.com/pages/viewpage.action?pageId=1295682276CVE reference
- https://jira.atlassian.com/browse/CONFSERVER-92475CVE reference
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-22515CVE reference · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Input Validation
Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.