CVE-2019-4456
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 · uneditedIBM Daeja ViewONE Professional, Standard & Virtual 5.0.5 and 5.0.6 is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 163620.
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 confidenceIBM Daeja ViewONE Professional, Standard & Virtual versions 5.0.5 and 5.0.6 are vulnerable to XML External Entity Injection (XXE) when processing XML data. A remote unauthenticated attacker can exploit this to read sensitive files from the server filesystem or cause denial-of-service via memory resource exhaustion.
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>= 5.0, <= 5.0.6CVSS 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
- Low
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/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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Verify IBM Daeja ViewONE installationLocate the IBM Daeja ViewONE installation directory or identify if the service/process is running on the system. Check common installation paths or search for process names associated with ViewONE.Affected if IBM Daeja ViewONE is found to be installed on the system
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Determine installed version numberIdentify the exact version of IBM Daeja ViewONE installed. Compare the version against the affected range: versions 5.0 through 5.0.6 are vulnerable.Affected if The installed version is 5.0.x where x is 0, 1, 2, 3, 4, 5, or 6
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Confirm XML processing functionality is accessibleDetermine whether the XML processing or document import feature of ViewONE is exposed or accessible to users. This may be via web interface, API endpoint, or file upload functionality.Affected if XML document processing is enabled and accessible to users or external callers
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Check for unauthenticated XML input handlingVerify whether the system accepts XML input without requiring authentication, as the vulnerability can be exploited by remote unauthenticated attackers.Affected if Unauthenticated XML input can be submitted to the system
A user is affected if they have IBM Daeja ViewONE version 5.0 through 5.0.6 installed with XML processing functionality accessible to users.
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 dataDisable external entity processing in the XML parser configuration, implement strict XML input validation/sanitization, and apply vendor-provided patches for affected versions.
- Consultation3.0 h
- Implementation3.0 h
- Testing2.0 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 $2,880.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-4456 — 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-2019-4456 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