CVE-2023-43698
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 · uneditedImproper Neutralization of Input During Web Page Generation (’Cross-site Scripting’) in RDT400 in SICK APU allows an unprivileged remote attacker to run arbitrary code in the clients browser via injecting code into the website.
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 confidenceCross-site scripting (XSS) vulnerability in the RDT400 component of SICK APU allows remote, unprivileged attackers to inject malicious scripts into web pages viewed by other users, enabling arbitrary code execution in client browsers.
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< 4.0.0.6CVSS 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 the device modelAccess the device's web interface or check the physical device label to confirm it is a SICK APU, specifically the Apu0200 modelAffected if The device is a SICK Apu0200 unit
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Check the installed firmware versionLog into the device web interface and navigate to the system information or firmware version page, or use the device's CLI command to display firmware versionAffected if The firmware version is lower than 4.0.0.6 (e.g., 4.0.0.5, 3.x.x.x)
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Verify the RDT400 web component is enabledAccess the device web interface and locate the RDT400 component section, typically found under the diagnostic or configuration pagesAffected if The RDT400 component is present and accessible in the web interface
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Confirm the web interface is network accessibleCheck network configuration or try accessing the device IP address via HTTP/HTTPS from a browserAffected if The device web interface is reachable over the network
You are affected if you have a SICK Apu0200 device running firmware version lower than 4.0.0.6 with the RDT400 web component enabled 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.
dbcve · scoped4.0.0.6
Implement proper input validation and output encoding/escaping for all user-supplied data rendered in web pages; utilize Content Security Policy (CSP) headers as an additional defense layer.
Apu0200 Firmware 4.0.0.6 or later
- 1. Visit the official SICK support website (sick.com) and navigate to the product support page for the SICK APU device
- 2. Locate the firmware download section for Apu0200
- 3. Download firmware version 4.0.0.6 or later
- 4. Review the firmware release notes for any special installation instructions or prerequisites
- 5. Backup the current device configuration if possible
- 6. Access the SICK APU web interface and navigate to the firmware update section
- 7. Upload and install the new firmware version 4.0.0.6 or later
- 8. After the firmware update completes, verify the device is functioning correctly
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-43698 — 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-2023-43698 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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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.
- 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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