CVE-2020-5581
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 · uneditedPath traversal vulnerability in Cybozu Garoon 4.0.0 to 5.0.1 allows remote authenticated attackers to obtain unintended information 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 · moderate confidenceA path traversal vulnerability in Cybozu Garoon versions 4.0.0 to 5.0.1 allows remote authenticated attackers to manipulate file path references and access files outside the intended web root directory, resulting in unauthorized information disclosure.
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>= 4.0.0, <= 5.0.1CVSS 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
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/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 installed Cybozu Garoon versionAccess the system administration panel or check the product information page within Garoon to determine the currently installed version numberAffected if The installed version is 4.0.0, 4.0.1, 4.0.2, 4.0.3, 4.5.0, 4.5.1, 4.5.2, 4.5.3, 5.0.0, 5.0.1, or any version within the 4.x or 5.0.x release lines before 5.0.2
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Verify web application accessibilityDetermine if the Cybozu Garoon web interface is accessible from network locations outside the trusted internal networkAffected if The web interface is exposed to untrusted networks or the internet without proper network-level access controls
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Confirm user authentication is requiredReview the authentication configuration to confirm that user login is required for accessing Garoon functionsAffected if Anonymous or unauthenticated access to Garoon functions is permitted (the vulnerability requires authenticated attackers, so lack of authentication may reduce but not eliminate risk)
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Inspect access logs for suspicious path traversal patternsReview web server and application logs for requests containing directory traversal sequences such as '../' or absolute file paths that attempt to access directories outside the Garoon installation rootAffected if Log analysis reveals file access requests with traversal patterns targeting system files outside the expected web root directory
You are affected if your installed Cybozu Garoon version is between 4.0.0 and 5.0.1 inclusive and the web application is accessible to authenticated users from untrusted sources.
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 dataApply the vendor security patch or upgrade to a patched version of Cybozu Garoon; until patched, restrict application access to trusted users only and monitor for anomalous file access patterns.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 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 $5,600.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-5581 — 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-2020-5581 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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