CVE-2018-0551
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 vulnerability in Cybozu Garoon 3.0.0 to 4.6.1 allows remote authenticated attackers to inject arbitrary web script or HTML via unspecified vectors.
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 confidenceCross-site scripting (XSS) vulnerability in Cybozu Garoon versions 3.0.0 through 4.6.1 allows remote authenticated attackers to inject arbitrary JavaScript or HTML into web pages viewed by other users. The vulnerability exists in unspecified input fields or parameters within the application that fail to properly sanitize user-supplied data before rendering it in the browser.
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>= 3.0.0, <= 4.6.1CVSS 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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Determine installed Cybozu Garoon versionAccess the system administration settings in Garoon and navigate to the version information or system information section. Alternatively, check any system documentation, installation records, or the Garoon login page which often displays version information.Affected if The displayed version falls within the range 3.0.0 to 4.6.1 inclusive.
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Verify version through system settingsLog into Garoon as an administrator and check the 'System Settings' > 'System Information' or similar path where version details are displayed. Note the exact version number shown.Affected if The version number cannot be determined or is missing from the affected range, but the product is Cybozu Garoon.
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Confirm the installation is not patchedCompare your installed version against the known fixed version 4.6.2 or later. If your version is 4.6.1 or lower, the vulnerability patch has not been applied.Affected if Your installed version is 4.6.1 or lower, indicating the XSS patch is not present.
If your Cybozu Garoon installation shows a version number between 3.0.0 and 4.6.1 inclusive, 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.
From vendor dataUpgrade Cybozu Garoon to version 4.6.2 or later, which contains the security patch for this XSS vulnerability. Apply vendor-supplied patches and verify all user inputs are properly validated and output-encoded.
- Consultation2.0 h
- Implementation4.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-0551 — 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-2018-0551 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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