CVE-2015-8486
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 · uneditedCybozu Office 9.9.0 through 10.3.0 allows remote authenticated users to bypass intended access restrictions and read arbitrary report titles via unspecified vectors, a different vulnerability than CVE-2015-8484, CVE-2015-8485, and CVE-2016-1152.
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 confidenceCybozu Office versions 9.9.0 through 10.3.0 contains an access control bypass vulnerability where remote authenticated users can read arbitrary report titles by circumventing intended restrictions. This is a privilege escalation issue within the report functionality that allows users to access reports outside their authorized scope.
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= 9.9.0= 10.0.0= 10.0.1= 10.0.2= 10.1.0= 10.1.2= 10.2.0= 10.3.0CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- None
- Availability
- Low
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
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 Cybozu Office installed versionLocate the version information in the product's About section, administration panel, or by checking the installation directory for version metadata files. The product typically stores version info in a config or metadata file accessible to administrators.Affected if The installed version matches any of: 9.9.0, 10.0.0, 10.0.1, 10.0.2, 10.1.0, 10.1.2, 10.2.0, or 10.3.0
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Confirm report module is in useCheck if the Report application module is enabled and accessible within the Cybozu Office installation. This is typically found in the system administration settings under application modules or through the web interface navigation.Affected if The Report module is enabled and users have been granted any level of report access privileges
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Verify report access controls are in placeReview the user roles and permissions configuration for the Report functionality in the administration panel. Check whether role-based access controls properly restrict users to only reports within their authorized scope.Affected if Users with limited permissions can potentially access report titles outside their designated scope, or if granular report-level access controls are not explicitly configured
You are affected if your Cybozu Office installation version falls within 9.9.0 through 10.3.0 AND the Report module is enabled with users accessing it, as the access control bypass in the report functionality allows privilege escalation.
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 Office to version 10.4.0 or later which contains the fix for this access control bypass. If immediate patching is not possible, implement additional access control validation layers around report access and monitor for unauthorized report access attempts.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,888.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2015-8486 — 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-2015-8486 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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