Horizon Alert
Summary of the vulnerability and why it matters
The Widget Connector macro in Atlassian Confluence Server is vulnerable to server-side template injection. This flaw allows remote attackers to execute arbitrary code on the server. The potential impact includes unauthorized access to sensitive data and disruption of business operations.
- Atlassian Confluence Server
- Path traversal and remote code execution
- Data compromise and operational disruption
Attack Path
How an attacker could exploit the issue
The Widget Connector macro in Atlassian Confluence Server and Data Center is vulnerable to server-side template injection. This vulnerability allows remote attackers to execute code on a Confluence instance. The attack exploits a path traversal vulnerability within the macro to gain unauthorized access and control.
- Exposure through the Widget Connector macro.
- Attacker initiates code execution remotely.
- Attacker achieves path traversal and RCE.
Live Threat
Current exploitation, exposure, and threat context
This vulnerability allows attackers to execute remote code on affected systems. The exploit requires no authentication and low complexity, meaning attackers with basic technical skills could potentially exploit it. Organizations with unpatched Confluence instances face significant risk due to active exploitation in the wild.
- Likely attacker skill level: Low
- Required access or conditions: None
- Business risk or urgency: High
Priority actions
Operational Fix
Recommended remediation, mitigation, and detection steps
This vulnerability allows remote attackers to execute code on a Confluence Server or Data Center instance through server-side template injection. The potential impact includes path traversal and remote code execution, posing a significant business risk to affected organizations. Given the severity, prompt action is essential to protect systems and data.
- Identify exposed Confluence assets.
- Reduce exposure or isolate risk.
- Fix, verify, and monitor.
