Nagios XiApplication · Nagios

CVE-2023-48084

CRITICAL · 9.8 CVSS v3.1 Published 2023-12-14
Fix available
A fix is available. Upgrade to 5.11.3 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Nagios XI before version 5.11.3 was discovered to contain a SQL injection vulnerability via the bulk modification tool.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

Nagios XI before version 5.11.3 contains a SQL injection vulnerability in the bulk modification tool, allowing remote unauthenticated attackers to inject arbitrary SQL queries into the database through unsanitized input.

MitigationUpgrade to Nagios XI version 5.11.3 or later, which includes input validation and parameterized queries to remediate the SQL injection vulnerability.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Nagios XiApplication
Affected:< 5.11.3

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify the installed Nagios XI version
    Access the Nagios XI administration interface and navigate to the About or System Information page, or check the version file in the Nagios XI installation directory
    Affected if The installed version is lower than 5.11.3 (for example, 5.11.2, 5.10.0, or earlier)
  2. Locate the bulk modification tool
    In the Nagios XI web interface, identify whether the bulk modification tool is present (typically found in the admin or configuration section under hosts or services)
    Affected if The bulk modification tool exists and is accessible in the interface
  3. Verify if remote unauthenticated access is possible
    Confirm whether the Nagios XI interface allows access to the bulk modification functionality without authentication or requires valid credentials
    Affected if The bulk modification tool can be accessed remotely without authentication
  4. Confirm unsanitized input acceptance
    Attempt to submit special SQL characters or observe whether the bulk modification tool performs input validation on form fields (this is an observation check, not an exploitation)
    Affected if The tool accepts input without visible sanitization or validation feedback

The environment is affected if Nagios XI version is below 5.11.3 AND the bulk modification tool is accessible, since the SQL injection vulnerability exists in that specific component for versions prior to 5.11.3.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 5.11.3 or later
Fixed in 5.11.3
Interim mitigation

Upgrade to Nagios XI version 5.11.3 or later, which includes input validation and parameterized queries to remediate the SQL injection vulnerability.

Recommended fix High confidence

Nagios XI 5.11.3

  1. 1. Back up your current Nagios XI installation and database before proceeding with any upgrade.
  2. 2. Download Nagios XI version 5.11.3 from the official Nagios website (www.nagios.com) or your Nagios customer portal.
  3. 3. Run the Nagios XI upgrade installer following the standard upgrade procedure for your operating system.
  4. 4. Verify the upgrade completed successfully by checking the Nagios XI version in the web interface (Admin > System Info > Version).
  5. 5. Confirm the bulk modification tool is functioning correctly and test that the SQL injection vulnerability is resolved.
Caveat Review Nagios XI 5.11.3 release notes for any changes to bulk modification tool functionality or other features before upgrading in production environments.

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Nagios Xi Scoped from the published advisory
  • Consultation2.0 h
  • Implementation3.0 h
  • Testing2.0 h
  • Review / QA1.0 h
8.0 hours of engineering $1,420
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,272.

Scan for this in your stack

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dbcve dependency scanner

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2023-48084 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
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