CVE-2023-40933

HIGH

Nagios XI < 5.11.2 - Authenticated SQL Injection via ID Parameter in update_banner_message()

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2023-40933. PoCs published by sealldeveloper.

AI-analyzed exploit summary This repository provides a functional sqlmap payload to exploit CVE-2023-40933, an SQL injection vulnerability in Nagios XI. The exploit leverages an authenticated session to dump the 'xi_users' table via a crafted request to the banner_message-ajaxhelper.php endpoint.

Description

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.

Exploits (1)

nomisec WORKING POC
by sealldeveloper · poc
https://github.com/sealldeveloper/CVE-2023-40933-PoC

This repository provides a functional sqlmap payload to exploit CVE-2023-40933, an SQL injection vulnerability in Nagios XI. The exploit leverages an authenticated session to dump the 'xi_users' table via a crafted request to the banner_message-ajaxhelper.php endpoint.

Classification
Working Poc 90%
Attack Type
Sqli
Complexity
Moderate
Reliability
Reliable
Target: Nagios XI
Auth required
Prerequisites: Valid Nagios XI username and password · Access to the target Nagios XI instance
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (3)

Core 3

Scores

CVSS v3 8.8
EPSS 0.0534
EPSS Percentile 91.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-89
Status published
Products (1)
nagios/nagios_xi < 5.11.2
Published Sep 19, 2023
Tracked Since Feb 18, 2026