CVE-2023-7315
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 5.11.3 are vulnerable to cross-site scripting (XSS) via the Graph Explorer 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 5.11.3 contain a stored cross-site scripting (XSS) vulnerability in the Graph Explorer component. The vulnerability results from insufficient validation or escaping of user-supplied input, allowing an authenticated attacker to inject and execute arbitrary JavaScript code in the context of a victim's browser session.
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< 5.11.3CVSS 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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Check Nagios XI versionLog into the Nagios XI web interface and navigate to the Admin > System Information page, or run 'cat /usr/local/nagiosxi/html/includes/version.php' from the command line to find the installed version number.Affected if The displayed version is less than 5.11.3 (for example, 5.11.2, 5.11.1, 5.10.0, etc.)
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Confirm Graph Explorer component is presentNavigate to the Graph Explorer feature in the Nagios XI web interface (typically under the 'Graphs' or 'Reporting' section) and verify the component loads successfully.Affected if The Graph Explorer component is accessible and functional in the Nagios XI installation.
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Verify authentication access to Nagios XIConfirm you have valid credentials to log into the Nagios XI web interface as any authenticated user (including limited-privilege users).Affected if An authenticated user session can be established, as the vulnerability requires authentication to inject the malicious script.
You are affected if your Nagios XI version is prior to 5.11.3 AND the Graph Explorer component is accessible to authenticated users in your environment.
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 · scoped5.11.3
Upgrade Nagios XI to version 5.11.3 or later to obtain the patch for this vulnerability. As a temporary workaround, restrict access to the Graph Explorer component to trusted users only.
Nagios XI 5.11.3
- Back up the current Nagios XI installation and database before proceeding with any upgrade
- Download Nagios XI version 5.11.3 from the official Nagios website (www.nagios.com)
- Run the upgrade installer following standard Nagios XI upgrade procedures
- After upgrade, verify the Graph Explorer component is functioning correctly
- Clear browser cache and test that the XSS vulnerability is remediated by attempting to inject test script payloads in the Graph Explorer parameters
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation3.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,040.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-7315 — 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-2023-7315 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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