CVE-2023-45222
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 · uneditedAn attacker with access to the web application that has the vulnerable software could introduce arbitrary JavaScript by injecting a cross-site scripting payload into the "autorefresh" parameter.
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 confidenceA cross-site scripting (XSS) vulnerability exists in the 'autorefresh' parameter of a web application. An authenticated attacker can inject arbitrary JavaScript payloads into this parameter, which will be executed in the browsers of other users viewing the affected page.
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= 4.24CVSS 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
- Low
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/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 modelLocate the network device in your environment and verify it is a Westermo L206 F2g unit. Check device labeling, inventory records, or the device's web interface for the model identifier.Affected if The device is a Westermo L206 F2g unit.
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Check the firmware versionAccess the device's web interface or administrative console and locate the firmware version information, typically found under System, Status, or About sections. Alternatively, check via CLI if available.Affected if The installed firmware version is exactly 4.24.
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Verify autorefresh feature accessibilityLog into the device's web interface as an authenticated user and navigate to pages that contain the autorefresh parameter or functionality. Look for pages with auto-refreshing content such as status dashboards, traffic monitors, or logging views.Affected if The autorefresh parameter is present and accessible within the authenticated web interface.
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Test for XSS in autorefress parameterUsing an authenticated session, modify the autorefresh parameter value on any affected page to include a benign test payload such as <script>alert('test')</script> and observe if the alert executes upon page reload or when other users view the page.Affected if The injected script payload executes in the browser, indicating the XSS vulnerability is present.
Your environment is affected if you have a Westermo L206 F2g device running firmware version 4.24 and the autorefresh feature is accessible in the web interface.
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 strict input validation and contextual output encoding for the autorefresh parameter. Additionally, deploy Content-Security-Policy (CSP) headers to mitigate XSS execution.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-45222 — 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-2023-45222 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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