CVE-2018-18880
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 · uneditedIn firmware version MS_2.6.9900 of Columbia Weather MicroServer, a networkdiags.php reflected Cross-site scripting (XSS) vulnerability allows remote authenticated users to inject arbitrary web script.
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 · moderate confidenceA reflected Cross-site scripting (XSS) vulnerability exists in the networkdiags.php file of Columbia Weather MicroServer firmware version MS_2.6.9900. The vulnerability allows remote authenticated users to inject arbitrary web script through unsanitized input parameters.
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= ms_2.6.9900CVSS 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:3.0/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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Identify the device modelAccess the web interface or check device documentation to confirm it is a Columbia Weather MicroServerAffected if Device is not a Columbia Weather MicroServer
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Check firmware versionLocate the firmware version in the device's web interface status page, admin settings, or system information section. Compare against MS_2.6.9900Affected if Firmware version is exactly MS_2.6.9900
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Verify networkdiags.php existsAttempt to access the networkdiags.php file via the web interface using a browser (e.g., http://[device-ip]/networkdiags.php)Affected if The file is accessible and returns a page
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Confirm authentication is enabledCheck if the device has authentication configured for its web interface. Try accessing networkdiags.php without logging in - if it redirects to login, authentication is activeAffected if Authentication is required to access the web interface (authenticated user role needed for exploit)
A user is affected if they have a Columbia Weather MicroServer running firmware version MS_2.6.9900 with the networkdiags.php file accessible via an authenticated web session
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.
From vendor dataFix requires implementing proper input validation and output encoding in the networkdiags.php file to neutralize malicious script injection. Since this is firmware, a patched firmware update will need to be developed and deployed.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-18880 — 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-2018-18880 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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