CVE-2018-15713: Nagios XI

Medium severity, CVSS 5.4. EPSS: 7.2% chance of exploitation in the next 30 days.

Nagios XI 5.5.6 allows persistent cross site scripting from remote authenticated attackers via the stored email address in admin/users.php.

Affected products

• Nagios Nagios XI: version 5.5.6 only

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