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Digital ExperienceApplication · Hcltech

CVE-2020-4081

MEDIUM · 6.1 CVSS v3.1 Published 2021-02-02
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
In Digital Experience 8.5, 9.0, and 9.5, WSRP consumer is vulnerable to cross-site scripting (XSS).

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 · moderate confidence

The WSRP (Web Services for Remote Portals) consumer component in IBM/HCL Digital Experience versions 8.5, 9.0, and 9.5 contains a cross-site scripting (XSS) vulnerability. The vulnerability allows attackers to inject malicious scripts through the WSRP consumer endpoint, likely via unsanitized input in portlet parameters or remote portlet content that gets rendered without proper encoding.

MitigationApply the appropriate vendor patch for CVE-2020-4081 to Digital Experience. Until patched, consider disabling or restricting WSRP consumer functionality and implementing WAF rules to detect XSS attack patterns targeting the WSRP endpoints.

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
Digital ExperienceApplication
Affected:= 8.5= 9.0= 9.5

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:3.1/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 Digital Experience version
    Access the Digital Experience administration console or check the product installation directory for version information. Common methods include viewing the About page in the WAS admin console or checking version files in the installation root.
    Affected if The installed version matches 8.5, 9.0, or 9.5 of HCL/IBM Digital Experience.
  2. Locate WSRP consumer configuration
    Access the Digital Experience administration portal and navigate to the WSRP consumer settings. This is typically found under Portal Administration > Portlet Management > WSRP Consumer, or by searching for WSRP-related configuration in the WebSphere/ Liberty administration console.
    Affected if WSRP consumer configuration exists and WSRP consumer service is enabled.
  3. Verify WSRP producer registrations
    Review the list of registered WSRP producers in the WSRP consumer configuration. Check for any producer definitions that point to external or untrusted remote portlet sources.
    Affected if Any WSRP producer is registered, particularly ones consuming remote portlets from external domains.
  4. Inspect WSRP endpoint accessibility
    Attempt to access the WSRP consumer endpoint URL (typically under /wsrp/consumer or similar path) to confirm the service is exposed. Check web server configuration and URL mappings for WSRP-related paths.
    Affected if The WSRP consumer endpoint is accessible over HTTP/HTTPS without additional authentication beyond portal login.
  5. Review portlet parameter handling
    Examine any custom portlets or remote portlet configurations that accept user input and pass it to WSRP consumer calls. Look for parameters that might be reflected in rendered output without encoding.
    Affected if Custom portlets or WSRP configurations accept URL parameters that could be rendered in the portal page output.

Your environment is affected if you run Digital Experience 8.5, 9.0, or 9.5 with the WSRP consumer feature enabled and any WSRP producers or remote portlets configured.

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 vendor patch for CVE-2020-4081 to Digital Experience. Until patched, consider disabling or restricting WSRP consumer functionality and implementing WAF rules to detect XSS attack patterns targeting the WSRP endpoints.

Fix this in Digital Experience Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA4.0 h
22.0 hours of engineering $3,860
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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-2020-4081 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
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  • Version or environment caveats, and links to real fixes
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