Vulnerability Intelligence Report
Atlassian Confluence Data Center and Server Improper Authorization Vulnerability
CVE-2023-22518
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 KEV
Nuclei Template
SSVC: Active Exploitation
Automatable
CVSS Base Score
10.0
CRITICAL
Exploitability:3.9
Impact Score:6.1
EPSS Probability:100.00%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-863 ↗CWE-863 Incorrect Authorization
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Atlassian | Confluence Data Center | < 1.0.0 (unaffected), >= 1.0.0 (affected), >= 7.19.16 (unaffected), >= 8.3.4 (unaffected), >= 8.4.4 (unaffected), >= 8.5.3 (unaffected), >= 8.6.1 (unaffected) |
| Atlassian | Confluence Server | < 1.0.0 (unaffected), >= 1.0.0 (affected), >= 7.19.16 (unaffected), >= 8.3.4 (unaffected), >= 8.4.4 (unaffected), >= 8.5.3 (unaffected), >= 8.6.1 (unaffected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
CISA KEV
ACTIVE IN CATALOG
Nuclei Template
SCANNER AVAILABLE
EPSS Score
99.999%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Atlassian · Vendor · Australia |
| Reserved | 2023-01-01T00:01:22 |
| Published | 2023-10-31T14:30:00 |
| Last Updated | 2025-10-21T23:05:32 |
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