CVE-2022-45137
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 configuration backend of the web-based management is vulnerable to reflected XSS (Cross-Site Scripting) attacks that targets the users browser. This leads to a limited impact of confidentiality and integrity but no impact of availability.
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 reflected Cross-Site Scripting (XSS) vulnerability exists in the web-based management interface's configuration backend. The vulnerability allows attackers to inject malicious scripts through user input that gets reflected back to the browser without proper sanitization, potentially compromising user sessions or stealing sensitive data.
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>= 16, < 22= 22= 23>= 18, < 22= 22= 23>= 16, < 22= 22= 23>= 16, < 22= 22= 23>= 16, < 22= 22= 23>= 16, < 22= 22= 23>= 16, < 22= 22= 23CVSS 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 device model and firmware versionAccess the device's web management interface or use the device's administrative console to retrieve the exact model number and firmware version. This is typically found in the system information or device status page of the web interface.Affected if The device model matches one of the affected products (Wago 751 9301, Wago 752 8303/8000 002, Wago Pfc100, Wago Pfc200, or Wago Touch Panel 600 variants) AND the firmware version falls within the affected ranges (16 through 23 inclusive).
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Verify web-based management interface is enabledConfirm that the HTTP/HTTPS web management interface is active and accessible on the device. This can be done by attempting to access the device's IP address via a web browser or checking the device's network configuration settings.Affected if The web-based management interface is accessible and the firmware version is in the affected range.
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Check for user input reflection in configuration backendIf the web interface is accessible, navigate to the configuration backend sections where user-supplied data can be entered (such as network settings, device naming, or authentication parameters). Submit test input containing simple HTML or script tags and observe if the input is reflected back in the response without proper encoding.Affected if User input is reflected in the response without sanitization or encoding, indicating the XSS vulnerability is present and exploitable in the environment.
The environment is affected if the device is one of the specified Wago models running firmware versions 16 through 23 and the web-based management interface is active, as the reflected XSS vulnerability exists in the configuration backend.
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 · scoped22
Implement proper input validation and output encoding for all user-supplied data in the configuration backend. Additionally, deploy Content Security Policy (CSP) headers to mitigate XSS execution.
Firmware version 24 or later for affected product lines (751 9301, 752 8303/8000 002, Pfc100, Pfc200, Touch Panel 600 series)
- Identify the specific device model from the affected product list (751 9301, 752 8303/8000 002, Pfc100, Pfc200, Touch Panel 600 Advanced/Marine/Standard)
- Locate the current firmware version on the device through the web interface or device documentation
- Download firmware version 24 or later from the manufacturer's official support site (cert.vde.com or vendor website)
- Back up the current device configuration before firmware update
- Upload and install the new firmware following the manufacturer's firmware upgrade procedure
- After upgrade, verify the firmware version has been updated successfully
- Test the web-based management interface to confirm normal operation
- Validate that the XSS vulnerability is remediated by confirming user input is properly sanitized in the configuration backend
Generated from the published advisory — verify against the referenced sources before acting.
- 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-2022-45137 — 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-2022-45137 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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