CVE-2018-15712: Nagios XI

Medium severity, CVSS 6.1. EPSS: 48.6% chance of exploitation in the next 30 days.

Nagios XI 5.5.6 allows reflected cross site scripting from remote unauthenticated attackers via the host parameter in api_tool.php.

Affected products

• Nagios Nagios XI: version 5.5.6 only

Published 2018-11-14. Last modified 2026-06-17.