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CVE-2023-40933

HighPublished

A SQL injection vulnerability in Nagios XI v5.11.1 and below allows authenticated attackers with announcement banner configuration privileges to execute...

Published: Sep 19, 2023
Updated: Jul 9, 2026
Assigning CNA: mitre
Evidence observed: Aug 4, 2026

Primary CVSS

8.8/ 10High

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS probability estimate

3.5%

Low · next 30 days

Percentile: 88.8%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

A SQL injection vulnerability in Nagios XI v5.11.1 and below allows authenticated attackers with announcement banner configuration privileges to execute arbitrary SQL commands via the ID parameter sent to the update_banner_message() function.

Sources

CVE-2023-40933-PoCPoC
The sqlmap payload to exploit CVE-2023-40933

Responsible use

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