Netweaver Composite Application FrameworkApplication · Sap

CVE-2020-6367

MEDIUM · 6.1 CVSS v3.1 Published 2020-10-20
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
There is a reflected cross site scripting vulnerability in SAP NetWeaver Composite Application Framework, versions - 7.20, 7.30, 7.31, 7.40, 7.50. An unauthenticated attacker can trick an unsuspecting authenticated user to click on a malicious link. The end users browser has no way to know that the script should not be trusted, and will execute the script, resulting in sensitive information being disclosed or modified.

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

Reflected cross-site scripting (XSS) vulnerability in SAP NetWeaver Composite Application Framework versions 7.20 through 7.50. An unauthenticated attacker can craft a malicious URL containing JavaScript payload that, when clicked by an authenticated user, executes in the victim's browser context, potentially leading to session hijacking, credential theft, or sensitive data exposure.

MitigationApply SAP security patches for CVE-2020-6367. Implement output encoding and input validation for all user-supplied parameters in the affected NetWeaver CAF components. Consider implementing Content Security Policy (CSP) headers as defense-in-depth measure.

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
Netweaver Composite Application FrameworkApplication
Affected:= 7.20= 7.30= 7.31= 7.40= 7.50

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 SAP NetWeaver CAF version
    Use SAP transaction code SM51 or transaction code CAFM (if available) to display the Composite Application Framework version information. Alternatively, check the SAP system information via system reports or the SAP NetWeaver Administrator (NWA) console.
    Affected if The reported version matches 7.20, 7.30, 7.31, 7.40, or 7.50.
  2. Verify CAF web component is enabled
    Check if the SAP NetWeaver CAF web interface or related ICF (Internet Communication Framework) services are active. Use transaction code SICF to inspect the CAF-related service paths and confirm they are active and not deactivated.
    Affected if The CAF web services are active and accessible via HTTP/HTTPS.
  3. Confirm external exposure of CAF URLs
    Review web dispatcher or ICM (Internet Communication Manager) configuration to determine if CAF endpoints are exposed to untrusted networks. Check URL patterns that include /sap/bc/caf/ paths in your web server logs or configuration.
    Affected if CAF URLs are reachable from outside the trusted internal network without additional authentication layers.
  4. Inspect for lack of input validation
    Review any custom CAF applications or configurations that handle URL parameters. Check if parameter handling code implements output encoding or input validation for user-supplied data.
    Affected if No input validation or output encoding is found for parameters in CAF components.

A user is affected if their SAP NetWeaver CAF version is 7.20 through 7.50 and the CAF web component is accessible, as the reflected XSS can be triggered via a malicious crafted URL.

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 SAP security patches for CVE-2020-6367. Implement output encoding and input validation for all user-supplied parameters in the affected NetWeaver CAF components. Consider implementing Content Security Policy (CSP) headers as defense-in-depth measure.

Fix this in Netweaver Composite Application Framework Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
18.0 hours of engineering $3,200
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Scan for this in your stack

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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-2020-6367 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