CVE-2024-39817
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 · uneditedInsertion of sensitive information into sent data issue exists in Cybozu Office 10.0.0 to 10.8.6, which may allow a user who can login to the product to view data that the user does not have access by conducting 'search' under certain conditions in Custom App.
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 confidenceAn information disclosure vulnerability in Cybozu Office 10.0.0-10.8.6 allows authenticated users to view restricted data through the Custom App search function. The search functionality fails to properly enforce access controls, permitting users to retrieve records they should not have permission to access by conducting searches under certain conditions.
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>= 10.0.0, < 10.8.7CVSS 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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Confirm Cybozu Office versionAccess the Cybozu Office administrator settings or system information page to determine the installed version number. Compare it against the affected range: vulnerable if version is 10.0.0 through 10.8.6.Affected if Installed version is 10.0.0 or higher but lower than 10.8.7
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Verify Custom App module is activeCheck in the Cybozu Office admin panel whether the Custom App feature is enabled for the system. Custom Apps are typically managed through the "System Settings" or "App Management" section.Affected if Custom App functionality is enabled and accessible to users
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Inspect Custom App access permissionsReview the permission settings for each Custom App in the system. Specifically examine whether record-level access restrictions are configured and whether the search function respects these restrictions.Affected if Custom Apps exist with restricted record access controls that should limit user visibility but may not be enforced during search operations
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Check for user access to Custom App searchIdentify which authenticated users have access to the Custom App search functionality. In the admin panel, review user or group assignments to Custom Apps that contain sensitive data.Affected if Non-administrator users have access to Custom Apps with restricted data and can perform search queries
The environment is affected if Cybozu Office version is 10.0.0 through 10.8.6 AND Custom App with restricted records is accessible to authenticated users who should have limited visibility.
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.
dbcve · scoped10.8.7
Apply the vendor patch or upgrade to a version beyond 10.8.6. Until then, restrict Custom App access to trusted users and monitor for unauthorized data access through search queries.
10.8.7
- 1. Back up the current Cybozu Office installation and database before proceeding with any upgrade.
- 2. Download Cybozu Office version 10.8.7 or later from the official Cybozu download page.
- 3. Follow the standard Cybozu Office upgrade procedure: stop the Cybozu Office service, run the installer, and follow the on-screen instructions.
- 4. After upgrade completion, verify that the Custom App search functionality works correctly.
- 5. Test that users can only access data according to their configured permissions in Custom App.
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation6.0 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-2024-39817 — 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-2024-39817 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
- No spam, self-promotion, credentials, or personal data