CVE-2023-22518
Atlassian Confluence Data Center and Server Improper Authorization Vulnerability
MITRE ATT&CK techniques
How this vulnerability maps to adversary behaviour, from the Center for Threat-Informed Defense's public CVE→ATT&CK mappings. Use it to check whether your detections already cover the technique.
Summary
Atlassian Confluence Data Center and Server contain an improper authorization vulnerability that can result in significant data loss when exploited by an unauthenticated attacker. There is no impact on confidentiality since the attacker cannot exfiltrate any data.
Affected software
Vendor: Atlassian · Product: Confluence Data Center and Server
Weakness types (CWE):
What to do
This vulnerability appears in CISA's Known Exploited Vulnerabilities catalog, meaning it is being exploited in the wild. Prioritize patching affected systems and verify exposure across your estate.
Related vulnerabilities in Atlassian
| CVE | Name | EPSS | Exploited |
|---|---|---|---|
| CVE-2022-26134 | Atlassian Confluence Server and Data Center Remote Code Execution Vulnerability | 100.0% | Yes |
| CVE-2021-26086 | Atlassian Jira Server and Data Center Path Traversal Vulnerability | 100.0% | Yes |
| CVE-2021-26084 | Atlassian Confluence Server and Data Center Object-Graph Navigation Language (OG | 100.0% | Yes |
| CVE-2023-22527 | Atlassian Confluence Data Center and Server Template Injection Vulnerability | 100.0% | Yes |
| CVE-2021-26085 | Atlassian Confluence Server Pre-Authorization Arbitrary File Read Vulnerability | 99.9% | Yes |
| CVE-2019-3396 | Atlassian Confluence Server and Data Center Server-Side Template Injection Vulne | 99.9% | Yes |
| CVE-2026-21589 | Atlassian Multiple Products Files or Directories Accessible to External Parties | 99.5% | Yes |
| CVE-2023-22515 | Atlassian Confluence Data Center and Server Broken Access Control Vulnerability | 99.2% | Yes |
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