CVE-2018-2452
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 · uneditedThe logon application of SAP NetWeaver AS Java 7.10 to 7.11, 7.20, 7.30, 7.31, 7.40, 7.50 does not sufficiently encode user-controlled inputs, resulting in a 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 vulnerability in the logon application of SAP NetWeaver AS Java (versions 7.10-7.11, 7.20, 7.30, 7.31, 7.40, 7.50). The application fails to sufficiently encode user-controlled inputs, allowing injection of malicious scripts that execute in the context of other authenticated users' sessions.
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= 7.10= 7.11= 7.20= 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:3.1/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 checksWork through these to decide whether this CVE applies to you.
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Identify SAP NetWeaver AS Java versionAccess SAP Management Console (SAP MMC) or use the SAP NetWeaver Administrator (NWA) to view the system information. Alternatively, check the SAP NOTE 1391092 for version detection methods.Affected if The installed version matches 7.10, 7.11, 7.20, 7.30, 7.31, 7.40, or 7.50 exactly.
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Confirm logon application is deployedVerify that the SAP NetWeaver AS Java logon application (typically accessible via /sap/public/logon or similar paths) is deployed and running on the system.Affected if The logon application is present and operational in the SAP NetWeaver AS Java environment.
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Verify network accessibility of logon interfaceDetermine if the SAP logon web interface is exposed to network access by reviewing web dispatcher configuration, ICM (Internet Communication Manager) settings, or by attempting to access the logon URL.Affected if The logon application is reachable over HTTP/HTTPS from network locations.
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Review authentication method configurationExamine the SAP NetWeaver AS Java security configuration to confirm that form-based or standard authentication is enabled for the logon application.Affected if Standard SAP logon authentication methods are enabled, allowing user-controlled inputs to be processed.
Your environment is affected if you run SAP NetWeaver AS Java versions 7.10 through 7.50 and the logon application is deployed and accessible.
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 SAP security note 2622660 (or subsequent superseding note) to address CVE-2018-2452. Validate and encode all user inputs in the logon application before rendering.
- Consultation4.0 h
- Implementation6.0 h
- Testing3.0 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 $4,304.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-2452 — 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-2018-2452 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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