Vulnerability Intelligence Report
Atlassian Confluence Data Center and Server Template Injection Vulnerability
CVE-2023-22527
A template injection vulnerability on older versions of Confluence Data Center and Server allows an unauthenticated attacker to achieve RCE on an affected instance. Customers using an affected version must take immediate action. Most recent supported versions of Confluence Data Center and Server are not affected by this vulnerability as it was ultimately mitigated during regular version updates. However, Atlassian recommends that customers take care to install the latest version to protect their instances from non-critical vulnerabilities outlined in Atlassian’s January Security Bulletin.
CISA KEV
Nuclei Template
SSVC: Active Exploitation
Automatable
CVSS Base Score
10.0
CRITICAL
Exploitability:3.9
Impact Score:6.1
EPSS Probability:99.98%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-74 ↗CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Atlassian | Confluence Data Center | < 8.0.0 (unaffected), >= 8.0.0 (affected), >= 8.1.0 (affected), >= 8.2.0 (affected), >= 8.3.0 (affected), >= 8.4.0 (affected), >= 8.5.0 (affected), >= 8.5.1 (affected), >= 8.5.2 (affected), >= 8.5.3 (affected), >= 8.5.4 (unaffected), >= 8.6.0 (unaffected), >= 8.7.1 (unaffected) |
| Atlassian | Confluence Server | < 8.0.0 (unaffected), >= 8.0.0 (affected), >= 8.1.0 (affected), >= 8.2.0 (affected), >= 8.3.0 (affected), >= 8.4.0 (affected), >= 8.5.0 (affected), >= 8.5.1 (affected), >= 8.5.2 (affected), >= 8.5.3 (affected), >= 8.5.4 (unaffected), >= 8.6.0 (unaffected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
CISA KEV
ACTIVE IN CATALOG
Nuclei Template
SCANNER AVAILABLE
EPSS Score
99.984%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Atlassian · Vendor · Australia |
| Reserved | 2023-01-01T00:01:22 |
| Published | 2024-01-16T05:00:00 |
| Last Updated | 2025-10-21T23:05:28 |
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