CVE-2019-4033
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 Content Navigator 2.0.3 and 3.0CD is vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session. IBM X-Force ID: 155999.
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 Content Navigator 2.0.3 and 3.0CD contains a stored cross-site scripting vulnerability in its Web UI. Attackers can embed arbitrary JavaScript code that executes within authenticated user sessions, potentially enabling credential theft or session hijacking.
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= 2.0.3= 3.0.0CVSS 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
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/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 checksWork through these to decide whether this CVE applies to you.
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Identify the installed IBM Content Navigator versionAccess the IBM Content Navigator administration console or check the installed package version. On Linux, this may be found in /opt/IBM/navigator or via the installation manifest. In the admin console, navigate to 'About' or 'Version Information' under the settings menu.Affected if The installed version is exactly 2.0.3 or exactly 3.0.0 (no patches applied)
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Confirm the Web UI component is enabledAccess the IBM Content Navigator URL (typically /navigator/) in a web browser and verify the login page or authenticated dashboard loads. Check the administration settings to confirm the web platform is not disabled.Affected if The Web UI is accessible and users can authenticate to the navigator platform
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Check if Content Security Policy headers are presentUse browser developer tools or a command-line tool like curl to inspect HTTP response headers from the Content Navigator server. Look for the 'Content-Security-Policy' header on pages served by the application.Affected if No CSP header is present in HTTP responses, indicating no script source restrictions
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Verify input sanitization for user-supplied contentReview IBM Content Navigator configuration files (typically in the config directory under the installation root) for custom input validation rules or XSS protection settings. Check if the default XSS filter is enabled in the web.xml or equivalent configuration.Affected if No custom input validation or XSS filtering is configured and default protections are disabled
You are affected if your IBM Content Navigator is version 2.0.3 or 3.0.0, the Web UI is accessible, and neither CSP headers nor input validation controls are in place to block malicious script injection.
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 dataApply IBM's security patch for Content Navigator when available; until then, implement Content Security Policy (CSP) headers and input validation to mitigate XSS exploitation.
- Consultation3.0 h
- Implementation6.0 h
- Testing4.0 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 $4,224.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-4033 — 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-2019-4033 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