Armorstart St 284ee FirmwareOperating system · Rockwellautomation

CVE-2023-29031

HIGH · 7.1 CVSS v3.1 Published 2023-05-11
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
78/100
Remediation priority · High
Remotely reachable No privileges

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 · unedited
A cross site scripting vulnerability was discovered in Rockwell Automation's ArmorStart ST product that could potentially allow a malicious user to view and modify sensitive data or make the web page unavailable. User interaction, such as a phishing attack, is required for successful exploitation of this 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 · moderate confidence

Cross-site scripting (XSS) vulnerability in the ArmorStart ST web interface allows attackers to inject malicious scripts through user input fields. Successful exploitation enables session hijacking, sensitive data exposure, or denial of service via phishing attacks requiring user interaction.

MitigationImplement input validation and output encoding for all user-supplied data in the web interface; deploy Content Security Policy headers and HTTP-only cookies to mitigate XSS execution risks.

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
Armorstart St 284ee FirmwareOperating system
Affected:all versions
Armorstart St 281e FirmwareOperating system
Affected:all versions

CVSS 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
Low

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify the ArmorStart ST model number
    Locate the product label or system inventory to confirm the model is either 284ee or 281e
    Affected if Model number is 284ee or 281e and the device is in use
  2. Verify the web interface is enabled
    Check if the ArmorStart ST web server is accessible on the network by attempting to access the device's IP address via HTTP/HTTPS
    Affected if The web interface responds and is accessible to users or attackers
  3. Confirm user input fields are present
    Log into the web interface and navigate to forms or input parameters where users can submit data (login fields, configuration inputs, or parameter entry points)
    Affected if User input fields exist and accept data without sanitization visible in the response
  4. Check firmware version is within affected range
    Locate the firmware version information in the web interface system settings or device documentation; all versions of 284ee and 281e firmware are affected per the CVE
    Affected if Firmware version is any version of 284ee or 281e (all versions are affected)

If the device is an ArmorStart ST model 284ee or 281e with an accessible web interface containing user input fields, the environment is affected by this XSS vulnerability.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Implement input validation and output encoding for all user-supplied data in the web interface; deploy Content Security Policy headers and HTTP-only cookies to mitigate XSS execution risks.

Fix this in Armorstart St 284ee Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
18.0 hours of engineering $3,200
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Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2023-29031 in production — separate from our analysis above.

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What this is

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.

What belongs here
  • 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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