CVE-2019-5946
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 · uneditedOpen redirect vulnerability in Cybozu Garoon 4.2.4 to 4.10.1 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via the Login Screen.
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 Garoon versions 4.2.4 through 4.10.1 contain an open redirect vulnerability in the Login Screen. Attackers can craft malicious URLs containing arbitrary redirect targets that cause authenticated or unauthenticated users to be redirected to attacker-controlled websites after visiting the login page, facilitating phishing attacks.
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>= 4.2.4, <= 4.10.1CVSS 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
- None
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.0/AV:N/AC:L/PR:N/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.
-
Identify Cybozu Garoon installation versionLocate the installed Cybozu Garoon version by accessing the system administration panel, checking the product footer on any page, or examining version files in the installation directory. Common paths include checking the help menu, system information page, or installation logs.Affected if The installed version falls within 4.2.4 through 4.10.1 (inclusive)
-
Confirm product is Cybozu GaroonVerify the application is indeed Cybozu Garoon by observing the product name in the interface, login page branding, or system information.Affected if The product is Cybozu Garoon and the version is in the affected range
-
Verify login screen accessibilityAccess the login page of the Cybozu Garoon installation (typically at /g/login or the root URL of the application).Affected if The login screen is accessible (this is always true for a default installation)
-
Document complete version stringRecord the exact version number displayed (for example, 4.6.0, 4.10.0, 4.10.1) to precisely determine if it falls within the vulnerable range.Affected if The version number is >= 4.2.4 and <= 4.10.1
You are affected if your Cybozu Garoon installation version is 4.2.4, 4.2.5, 4.2.6, 4.2.7, 4.2.8, 4.2.9, 4.2.10, 4.3.0, 4.4.0, 4.5.0, 4.6.0, 4.7.0, 4.8.0, 4.9.0, 4.10.0, or 4.10.1.
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 dataUpdate Cybozu Garoon to version 4.10.2 or later. If immediate patching is not possible, implement URL validation to reject redirect parameters pointing to external domains.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 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 $3,088.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-5946 — 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-2019-5946 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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.
- 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