CVE-2011-10037
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 2011R1.9 are vulnerable to cross-site scripting (XSS) via the handling of xiwindow variables used to build permalinks in 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 prior to 2011R1.9 contain a cross-site scripting (XSS) vulnerability in the permalink functionality. The xiwindow variable used to construct permalink URLs is not properly validated or escaped, allowing attackers to inject arbitrary JavaScript that executes in the context of authenticated users' browsers.
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<= 2009= 2011CVSS 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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Confirm Nagios XI installationLocate the Nagios XI web interface by accessing your server via browser at the typical path (e.g., /nagiosxi/ or /nagios/) or check for installation directories such as /usr/local/nagiosxi/ or /var/www/html/nagiosxi/Affected if Nagios XI is not installed on this system
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Identify the installed Nagios XI versionLog into the Nagios XI administrative interface and navigate to the Admin > System Information page, or check the version file at /usr/local/nagiosxi/etc/xi-version.txt if accessibleAffected if The installed version cannot be determined or the version file is missing
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Compare version against affected rangesReview the discovered version number against the affected ranges: versions <= 2009 or = 2011 (prior to 2011R1.9)Affected if The installed version is 2009 or earlier, or is 2011 (any sub-version), meaning it predates the 2011R1.9 patch
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Verify permalink functionality is accessibleCheck if the permalink feature exists in the Nagios XI interface, typically found in monitoring views or dashboards where users can generate shareable linksAffected if The permalink feature is present and accessible to authenticated users, enabling the attack surface
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Confirm authenticated access capabilityDetermine if regular users or administrators have accounts that allow them to access the Nagios XI web interfaceAffected if Users can authenticate to Nagios XI, which provides the context for the XSS to execute in
If Nagios XI is installed with a version prior to 2011R1.9 and the permalink feature is accessible to authenticated users, the environment is affected by this XSS vulnerability.
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 · scopedUpgrade Nagios XI to version 2011R1.9 or later to obtain the patched version that properly sanitizes xiwindow variables in permalink generation.
Nagios XI 2011R1.9 or later stable release
- 1. Identify current Nagios XI version by navigating to the Admin > System Information section in the web interface
- 2. Create a complete backup of the Nagios XI database and configuration files
- 3. Download Nagios XI version 2011R1.9 or a later stable version from the official Nagios download portal
- 4. Run the standard Nagios XI upgrade script (./upgrade xi) or use the web-based upgrade interface
- 5. After upgrade completes, verify the version by checking Admin > System Information
- 6. Clear browser cache and test that the xiwindow/permalink functionality works correctly
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation1.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2011-10037 — 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-2011-10037 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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- Version or environment caveats, and links to real fixes
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