CVE-2018-2365
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 · uneditedSAP NetWeaver Portal, WebDynpro Java, 7.30, 7.31, 7.40, 7.50, does not sufficiently encode user controlled inputs, resulting in Cross-Site Scripting (XSS) vulnerability.
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 confidenceCross-Site Scripting (XSS) vulnerability in SAP NetWeaver Portal's WebDynpro Java component (versions 7.30-7.50) where user-controlled inputs are not properly encoded, allowing injection of malicious scripts that execute in the browsers of other users accessing the portal.
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= 7.30= 7.31= 7.40= 7.50CVSS 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 checksWork through these to decide whether this CVE applies to you.
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Identify SAP NetWeaver Portal versionCheck the installed SAP NetWeaver Portal version using SAP transaction SM51 or by inspecting the SAP System Information page in the SAP NetWeaver Administrator. Alternatively, review system documentation or run the SAP command 'SAPSYSTEMNAME' in transaction SM37 to confirm the release.Affected if The installed version matches 7.30, 7.31, 7.40, or 7.50 exactly.
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Verify WebDynpro Java component is activeAccess the SAP NetWeaver Administrator and navigate to Systems > Services to confirm WebDynpro Java is running. You can also check via transaction WDY_MAINTAIN in the SAP GUI, or inspect the Java cluster using SAP J2EE Engine tools.Affected if WebDynpro Java component is deployed and active on the portal.
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Identify WebDynpro applications in useReview the WebDynpro applications deployed on the system using the WebDynpro Content Administrator in SAP NetWeaver Portal or by querying the WD_APPLICATIONS table via ABAP transaction SE16. List all custom and deployed WebDynpro applications.Affected if Any WebDynpro Java applications are present on the system.
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Inspect for unencoded user inputsExamine the source code of deployed WebDynpro Java applications, specifically looking for places where user-controlled parameters are rendered in the UI without using SAP encoding utilities such as the escapeHtml() or escapeHtml4() methods from com.sap.security.core.util library.Affected if User-controlled inputs in WebDynpro Java views are rendered without proper output encoding.
You are affected if SAP NetWeaver Portal version is 7.30, 7.31, 7.40, or 7.50 AND WebDynpro Java applications are deployed that render user inputs without output encoding.
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 dataImplement proper output encoding on all user-controlled inputs within WebDynpro Java applications using SAP's encoding utilities, combined with input validation and Content Security Policy headers.
- Consultation6.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-2365 — 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-2018-2365 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
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