Nagios XI < 5.4.13 Component Download Page RCE
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Nagios XI versions prior to 5.4.13 contain a remote code execution vulnerability in the Component Download page. The download/import handler used unsafe command construction with attacker-controlled input and lacked sufficient validation and output encoding, allowing an authenticated user to inject commands or otherwise execute arbitrary code with the privileges of the application service.
No remediation guidance has been written for this CVE yet. What the record does show:
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