Nagios XI < 5.8.9 Core Config Manager (CCM) XSS via Audit Log Page Search Input

The Core Config Manager (CCM) in Nagios XI versions prior to CCM 3.1.7 / Nagios XI 5.8.9 contains a cross-site scripting (XSS) vulnerability via the Audit Log page search input. Insufficient validation or escaping of user-supplied input may allow an attacker to inject and execute arbitrary script in the context of a victim's browser.