CVE-2023-40934Network attack vector

Authenticated SQL execution via trusted escalation parameters

Published Sep 19, 2023 · Updated Jul 9, 2026

SQL injection in Nagios XI 5.11.1 and earlier allows remote authenticated users with CCM escalation rights to execute arbitrary database queries. The /nagiosxi/includes/components/ccm/index.php endpoint treats the tfFirstNotif, tfLastNotif, and tfNotifInterval POST parameters as trusted database inputs despite receiving them from the client. Rights to manage host or service escalations are required, and successful exploitation grants access to database data such as password hashes and API tokens.

CVSS severity7.2
High
EPSS probability3.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in Nagios XI 5.11.1 and earlier allows remote authenticated users with CCM escalation rights to execute arbitrary database queries. The /nagiosxi/includes/components/ccm/index.php endpoint treats the tfFirstNotif, tfLastNotif, and tfNotifInterval POST parameters as trusted database inputs despite receiving them from the client. Rights to manage host or service escalations are required, and successful exploitation grants access to database data such as password hashes and API tokens.

The record

CVE
CVE-2023-40934
Published
Sep 19, 2023
Updated
Jul 9, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-89, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 19, 2023CVE publishedPublication date reported by the CVE source.
  2. Jul 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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