CVE-2018-9928
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 · uneditedCross-site scripting (XSS) vulnerability in save.php in MetInfo 6.0 allows remote attackers to inject arbitrary web script or HTML via the webname or weburl parameter.
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 confidenceA reflected cross-site scripting (XSS) vulnerability exists in save.php of MetInfo 6.0. The webname and weburl parameters are not properly sanitized, allowing attackers to inject arbitrary JavaScript or HTML into the response.
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= 6.0.0CVSS 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
- None
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.0/AV:N/AC:L/PR:N/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 MetInfo installation and locate save.phpLocate the MetInfo installation on the web server. Look for save.php in the root or admin directory. Common paths include /save.php, /admin/save.php, or /config/save.php.Affected if MetInfo is installed and save.php file exists in the web accessible directory
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Check MetInfo version numberAccess the MetInfo admin panel or check version.php in the include directory. Identify the exact version number installed.Affected if The installed version is exactly 6.0.0 (the only affected version)
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Test webname parameter for reflected contentSend a crafted HTTP request to save.php with the webname parameter set to a test string (e.g., ?webname=test). Examine the HTTP response to see if the value is reflected back in the page output.Affected if The webname parameter value is reflected in the response without proper encoding
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Verify lack of input sanitizationSend a request with special HTML characters in the webname parameter (e.g., <script> or <img). Inspect the response to confirm these characters appear unescaped in the HTML output.Affected if HTML/script characters are rendered as-is without being escaped or encoded
The environment is affected if MetInfo version 6.0.0 is installed, save.php is accessible, and the webname or weburl parameters reflect user input unescaped in the HTTP response.
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 dataImplement proper input validation and output encoding for the webname and weburl parameters in save.php to prevent script injection.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 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 $3,088.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-9928 — 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-2018-9928 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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