CVE-2024-14000
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 · uneditedNagios XI versions prior to 2024R1.1.3 are vulnerable to cross-site scripting (XSS) via the Capacity Planning Report component. Insufficient validation or escaping of user-supplied input may allow an attacker to inject and execute arbitrary script in the context of a victim's browser.
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 confidenceNagios XI versions prior to 2024R1.1.3 contain a cross-site scripting (XSS) vulnerability in the Capacity Planning Report component. The vulnerability stems from insufficient validation or escaping of user-supplied input, allowing attackers to inject and execute arbitrary JavaScript in the context of a victim's browser.
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< 2024= 2024CVSS 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
- Low
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
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 checksWork through these to decide whether this CVE applies to you.
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Verify Nagios XI installationIdentify if the target system has Nagios XI installed by checking for Nagios XI processes, services, or web directories (typically under /usr/local/nagiosxi/ or similar).Affected if The system is running Nagios XI software.
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Determine installed Nagios XI versionAccess the Nagios XI admin interface and navigate to the About page (Admin > System Information) or check version files in the Nagios XI installation directory.Affected if The installed version is any version prior to 2024R1.1.3, or exactly version 2024.
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Confirm Capacity Planning Report component is accessibleLog into the Nagios XI web interface and verify access to the Capacity Planning Report feature (typically found under Reports > Capacity Planning or similar navigation path).Affected if The Capacity Planning Report component is available and accessible in the web interface.
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Identify if user input is processed in Capacity Planning ReportsExamine how the Capacity Planning Report component handles user-supplied input fields, such as host names, service descriptions, or time range parameters.Affected if User-supplied input is accepted and displayed without proper validation in the Capacity Planning Report output.
The environment is affected if Nagios XI is installed with a version prior to 2024R1.1.3 (or exactly version 2024) and the Capacity Planning Report component is accessible and processes user input.
Generated from the published advisory. Verify against your own configuration.
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 · scoped2024
Upgrade Nagios XI to version 2024R1.1.3 or later to obtain the vendor patch. Implement proper input validation and output encoding in the Capacity Planning Report component as a compensating control if immediate patching is not feasible.
2024R1.1.3
- Verify current Nagios Xi version by checking the admin interface or running: cat /usr/local/nagiosxi/etc/xiversion.txt
- Review the Nagios Xi upgrade documentation at www.nagios.com for the recommended upgrade procedure
- Ensure adequate backup of the Nagios Xi system including database and configuration files
- Run the standard Nagios Xi update process or use the web-based update mechanism to upgrade to version 2024R1.1.3
- After upgrade, verify the Capacity Planning Report component is functioning correctly
- Confirm the new version is installed: cat /usr/local/nagiosxi/etc/xiversion.txt
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-14000 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2024-14000 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- 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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