CVE-2016-15053
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 5.2.4 are vulnerable to cross-site scripting (XSS) via the “My Reports” listing of the web interface. 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 before 5.2.4 contain a stored cross-site scripting (XSS) vulnerability in the 'My Reports' feature of the web interface. The application fails to properly validate or escape user-supplied input when rendering reports, allowing an attacker to inject malicious JavaScript that executes in the context of other users' browsers when they view the affected reports.
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< 5.2.4CVSS 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.
-
Identify Nagios XI versionLog into the Nagios XI web interface and navigate to Admin > System Information, or run 'cat /usr/local/nagiosxi/etc/xi-versions.txt' via command line to retrieve the installed version number.Affected if The displayed version is lower than 5.2.4 (for example, 5.2.3, 5.2.0, 5.0.0, etc.)
-
Verify My Reports module accessIn the web interface, locate the 'My Reports' section in the navigation menu. This is typically found under the Reports or My Dashboard area. Confirm the module is present and accessible to your user account.Affected if The My Reports feature exists and is accessible in the web interface.
-
Inspect report input fields for XSS filtersCreate a test report or edit an existing one in the My Reports section. Attempt to insert HTML or JavaScript characters such as <script>alert(1)</script> into text fields like report title or description, then save and view the report.Affected if The submitted characters are rendered as-is without encoding or sanitization when the report is displayed (the script tag appears literally or executes).
You are affected if your Nagios XI version is below 5.2.4 and the My Reports feature is active and renders unsanitized 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 · scoped5.2.4
Upgrade Nagios XI to version 5.2.4 or later to obtain the patched version that properly sanitizes user input in the My Reports functionality.
Nagios XI 5.2.4
- Identify current Nagios XI version in the web interface under Admin > System Information
- Back up the Nagios XI system including configuration files and the MySQL database
- Download Nagios XI version 5.2.4 or later from the official Nagios website (www.nagios.com)
- Follow the official Nagios XI upgrade documentation to apply the update
- After upgrading, verify the fix by accessing the My Reports section and confirming that user-supplied input is properly escaped
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation1.0 h
- Implementation2.0 h
- Testing3.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,904.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2016-15053 — 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-2016-15053 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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.
- 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
- No spam, self-promotion, credentials, or personal data