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CVE-2023-40934

• Severity: high (CVSS 7.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-09-19 · updated 2026-07-09
• Weakness: CWE-89

Description

A SQL injection vulnerability in Nagios XI 5.11.1 and below allows authenticated attackers with privileges to manage host escalations in the Core Configuration Manager to execute arbitrary SQL commands via the host escalation notification settings.

Affected products

• Nagios XI: before 5.11.2 — fixed in 5.11.2

How to fix

Upgrade to a fixed version: Nagios XI 5.11.2. Check the vendor advisory for mitigations.

References

• https://outpost24.com/blog/nagios-xi-vulnerabilities/
• https://www.nagios.com/products/security/
• https://outpost24.com/blog/nagios-xi-vulnerabilities/
• https://www.nagios.com/products/security/

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