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GaroonApplication · Cybozu

CVE-2017-2255

MEDIUM · 5.4 CVSS v3.0 Published 2017-08-29
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
58/100
Remediation priority · Elevated
Remotely reachable

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 · unedited
Cross-site scripting vulnerability in Cybozu Garoon 3.7.0 to 4.2.5 allows an attacker to inject arbitrary web script or HTML via "Rich text" function of the application "Space".

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 confidence

This is a stored cross-site scripting (XSS) vulnerability in Cybozu Garoon's 'Space' application. Attackers can inject malicious JavaScript or HTML into the 'Rich text' function, which will be executed when other users view the affected content.

MitigationUpgrade Cybozu Garoon to version 4.2.6 or later. If immediate patching is not possible, disable or restrict access to the Space application's Rich text function until the upgrade can be applied.

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
GaroonApplication
Affected:= 3.7.0= 3.7.1= 3.7.2= 3.7.3= 3.7.4= 3.7.5= 4.0.1= 4.0.2= 4.0.3= 4.2.0= 4.2.1= 4.2.2

CVSS 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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify installed Cybozu Garoon version
    Locate the Garoon version information in the system administration panel or check the product version displayed in the login screen or system settings
    Affected if The installed version matches 3.7.0, 3.7.1, 3.7.2, 3.7.3, 3.7.4, 3.7.5, 4.0.1, 4.0.2, 4.0.3, 4.2.0, 4.2.1, or 4.2.2
  2. Verify Space application is enabled
    Access the system administration settings and confirm whether the Space application module is active for users
    Affected if The Space application is enabled and accessible to users in the affected version
  3. Confirm Rich text function accessibility
    Check user permissions or settings within the Space application to determine if the Rich text editing function is available to standard users
    Affected if Users have the ability to create or edit content using the Rich text function in the Space application

If your Cybozu Garoon version is one of the listed vulnerable versions and the Space application with Rich text functionality is enabled and accessible to users, your environment is affected by this stored XSS vulnerability.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Upgrade Cybozu Garoon to version 4.2.6 or later. If immediate patching is not possible, disable or restrict access to the Space application's Rich text function until the upgrade can be applied.

Fix this in Garoon Scoped from the published advisory
  • Consultation3.0 h
  • Implementation4.0 h
  • Testing6.0 h
  • Review / QA3.0 h
16.0 hours of engineering $2,760
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2017-2255 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • 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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