CVE-2023-40931: Nagios XI

Medium severity, CVSS 6.5. EPSS: 11.9% chance of exploitation in the next 30 days.

A SQL injection vulnerability in Nagios XI from version 5.11.0 up to and including 5.11.1 allows authenticated attackers to execute arbitrary SQL commands via the ID parameter in the POST request to /nagiosxi/admin/banner_message-ajaxhelper.php

Affected products

• Nagios Nagios XI: from 5.11.0, before 5.11.2 (fixed in 5.11.2)

Published 2023-09-19. Last modified 2026-07-09.