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Websphere PortalApplication · Ibm

CVE-2015-4998

MEDIUM · 6.1 CVSS v3.0 Published 2015-12-21
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
68/100
Remediation priority · Elevated
Remotely reachable No privileges

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 (XSS) vulnerability in IBM WebSphere Portal 6.1.0 through 6.1.0.6 CF27, 6.1.5 through 6.1.5.3 CF27, 7.0.0 through 7.0.0.2 CF29, 8.0.0 before 8.0.0.1 CF19, and 8.5.0 before CF08 allows remote attackers to inject arbitrary web script or HTML via a crafted URL, a different vulnerability than CVE-2015-4993.

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

Cross-site scripting (XSS) vulnerability in IBM WebSphere Portal allowing remote attackers to inject arbitrary web script or HTML via crafted URLs. Affected versions include 6.1.0 through 6.1.0.6 CF27, 6.1.5 through 6.1.5.3 CF27, 7.0.0 through 7.0.0.2 CF29, 8.0.0 before 8.0.0.1 CF19, and 8.5.0 before CF08.

MitigationApply the appropriate IBM WebSphere Portal cumulative fixes: CF19 for version 8.0.0, CF08 for version 8.0.0, or later cumulative fixes for earlier versions. Validate that input validation and output encoding are properly implemented post-patch.

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
Websphere PortalApplication
Affected:= 6.1.0.0= 6.1.0.1= 6.1.0.2= 6.1.0.3= 6.1.0.4= 6.1.0.5= 6.1.0.6= 6.1.5.0= 6.1.5.1= 6.1.5.2= 6.1.5.3= 7.0.0.0

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
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 checks

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

  1. Identify the installed WebSphere Portal version
    Check the Portal version via the WebSphere Portal Administration console (typically at /wps/portal), or inspect version files in the Portal installation directory such as the version.info file or the installedApps directory metadata
    Affected if The installed version is 6.1.0.x, 6.1.5.x, 7.0.0.x, 8.0.0.x before CF19, or 8.5.0.x before CF08
  2. Confirm the Cumulative Fix (CF) level applied
    In the WebSphere Portal Administration console, navigate to the version or maintenance information section to see installed Cumulative Fixes. Alternatively, check the CF level recorded in the installation logs or the version metadata files in the Portal data directory
    Affected if The installed CF level is below CF27 for versions 6.1.0.x and 6.1.5.x, below CF29 for version 7.0.0.x, below CF19 for version 8.0.0.x, or below CF08 for version 8.5.0.x

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

Apply the appropriate IBM WebSphere Portal cumulative fixes: CF19 for version 8.0.0, CF08 for version 8.0.0, or later cumulative fixes for earlier versions. Validate that input validation and output encoding are properly implemented post-patch.

Fix this in Websphere Portal Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA2.0 h
20.0 hours of engineering $3,500
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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-2015-4998 in production — separate from our analysis above.

No notes yet

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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
  • No spam, self-promotion, credentials, or personal data