What is the CVSS score of CVE-2023-40931?

CVE-2023-40931 has a CVSS 3.1 base score of 6.5 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 13.5%.

Is there a public PoC exploit available for CVE-2023-40931?

Yes, a public proof-of-concept exploit is available for CVE-2023-40931. Prioritise patching immediately. EPSS: 13.5%.

Nagios Xi CVE-2023-40931

MEDIUM

SQL Injection (CWE-89)

2023-09-19 cve@mitre.org

PHP SQLi Nagios Xi Nagios

6.5

CVSS 3.1 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-89 OWASP Top 10:2025 A05:2025 - Injection ASVS 5.0 V1 - Encoding and Sanitization Parameterized queries, prepared statements MITRE ATT&CK 2 techniques across 2 tactics: Initial Access, Persistence The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 6.5 (MEDIUM). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required. Public proof-of-concept exploit code is available. EPSS exploitation probability: 13.48%.
Exploit ScenarioDerived	A remote attacker could execute arbitrary SQL commands against the database by sending crafted requests to the affected application.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

No patch listed yet 13.5% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAI

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. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and EPSS exploitation probability 13.5%.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Use parameterized queries/prepared statements. Never concatenate user input into SQL. Apply least-privilege database permissions.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as SQL Injection (CWE-89), which allows attackers to execute arbitrary SQL commands against the database. 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 include: Nagios Nagios Xi. Version information: version 5.11.0.

Know when Nagios Xi gets its next vulnerability

Watch products and get an email when something new is published
Check this CVE against your own stack and servers
Exploit and PoC references, threat intelligence from 22 sources

Continue with Google Continue with GitHub

No credit card · 7-day full trial

Severity by source

NVD PRIMARY 6.5 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

DescriptionNVD

Threat Intelligence Overview

EPSS Score

13.5%

Top 4% exploitable

Exploit

POC

Public exploit code exists

Data Quality

4 sources

Confidence: Medium

NVD

CVE.org

EPSS POC (1)

VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity MEDIUM

CISA KEV No

Public POC Yes

EPSS 13.5%

Patch available No

Active threat Yes

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

Poc

System Exposure· derived

Open

Automatable· derived

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +13

CVSS: +32

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

SQL Injection HIGH

SQL injection exploits the way applications construct database queries by mixing user input directly into SQL statements.

Affected Products (CPE)NVD

cpe:2.3:a:nagios:nagios_xi:*:*:*:*:*:*:*:*

More in Nagios Xi

View all

CVE-2021-25298 HIGH Act Now POC

8.8 Feb 15

Nagios XI version xi-5.7.5 is affected by OS command injection. Rated high severity (CVSS 8.8), this vulnerability is re

CVE-2021-25296 HIGH Act Now POC

8.8 Feb 15

Nagios XI version xi-5.7.5 is affected by OS command injection. Rated high severity (CVSS 8.8), this vulnerability is re

CVE-2021-25297 HIGH Act Now POC

8.8 Feb 15

Nagios XI version xi-5.7.5 is affected by OS command injection. Rated high severity (CVSS 8.8), this vulnerability is re

CVE-2021-25299 MEDIUM This Month POC

6.1 Feb 15

Nagios XI version xi-5.7.5 is affected by cross-site scripting (XSS). Rated medium severity (CVSS 6.1), this vulnerabili

CVE-2018-15708 CRITICAL Emergency POC

9.8 Nov 14

Snoopy 1.0 in Nagios XI 5.5.6 allows remote unauthenticated attackers to execute arbitrary commands via a crafted HTTP r

CVE-2018-8734 CRITICAL Emergency POC

9.8 Apr 18

SQL injection vulnerability in the core config manager in Nagios XI 5.2.x through 5.4.x before 5.4.13 allows an attacker

CVE-2018-8733 CRITICAL Emergency POC

9.8 Apr 18

Authentication bypass vulnerability in the core config manager in Nagios XI 5.2.x through 5.4.x before 5.4.13 allows an

CVE-2021-37343 HIGH Act Now POC

8.8 Aug 13

A path traversal vulnerability exists in Nagios XI below version 5.8.5 AutoDiscovery component and could lead to post au

CVE-2019-15949 HIGH Act Now POC

8.8 Sep 05

Nagios XI before 5.6.6 allows remote command execution as root. Rated high severity (CVSS 8.8), this vulnerability is re

CVE-2018-8736 HIGH Act Now POC

8.8 Apr 18

A privilege escalation vulnerability in Nagios XI 5.2.x through 5.4.x before 5.4.13 allows an attacker to leverage an RC

CVE-2018-8735 HIGH Act Now POC

8.8 Apr 18

Remote command execution (RCE) vulnerability in Nagios XI 5.2.x through 5.4.x before 5.4.13 allows an attacker to execut

CVE-2013-6875 HIGH Act Now POC

7.5 Nov 26

SQL injection vulnerability in functions/prepend_adm.php in Nagios Core Config Manager in Nagios XI before 2012R2.4 allo

Same weakness CWE-89 – SQL Injection

View all

CVE-2023-48788 CRITICAL POC

9.8

CVE-2019-7481 HIGH POC

7.5

CVE-2025-57819 CRITICAL POC

10.0

CVE-2017-8917 CRITICAL POC

9.8

CVE-2024-27956 CRITICAL POC

9.9

CVE-2014-3704 HIGH POC

7.5

CVE-2016-2555 CRITICAL POC

9.8

CVE-2016-8582 CRITICAL POC

9.8

Same technique SQLi

View all

CVE-2013-0333 HIGH POC

7.5

References

Advisories & patches

ADVISORY https://vuldb.com/vuln/239985 ADVISORY https://www.nagios.com/products/security/ REF http://nagios.com REF https://outpost24.com/blog/nagios-xi-vulnerabilities/

Search Externally

GitHub PoC

Exploit-DB PacketStorm Snyk Rapid7 Nuclei Templates Trickest PoC

Back