dbcve.org
Create AgentApplication · Arduino

CVE-2023-43803

HIGH · 7.1 CVSS v3.1 Published 2023-10-18
Fix available
A fix is available. Upgrade to 1.3.3 or later.
See remediation →
73/100
Remediation priority · Elevated
Zero-click

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
Arduino Create Agent is a package to help manage Arduino development. This vulnerability affects the endpoint `/v2/pkgs/tools/installed` and the way it handles plugin names supplied as user input. A user who has the ability to perform HTTP requests to the localhost interface, or is able to bypass the CORS configuration, can delete arbitrary files or folders belonging to the user that runs the Arduino Create Agent via a crafted HTTP POST request. This issue has been addressed in version `1.3.3`. Users are advised to upgrade. There are no known workarounds for 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 · high confidence

Arduino Create Agent has a path traversal vulnerability in the `/v2/pkgs/tools/installed` endpoint that allows authenticated users or CORS bypass attackers to delete arbitrary files/folders via crafted plugin names in HTTP POST requests.

MitigationUpgrade to Arduino Create Agent version 1.3.3. No workarounds exist.

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
Create AgentApplication
Affected:< 1.3.3

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
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
High

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

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. Confirm Arduino Create Agent installation
    Identify if Arduino Create Agent is installed on the system by checking for the agent process, service, or installed application directory
    Affected if Arduino Create Agent is installed and running on the system
  2. Determine installed version
    Check the version of Arduino Create Agent by inspecting the application binary, package metadata, or service information. Compare the version number against the affected range: versions prior to 1.3.3 are vulnerable
    Affected if The installed version is lower than 1.3.3
  3. Verify vulnerable endpoint accessibility
    Determine if the `/v2/pkgs/tools/installed` HTTP endpoint is accessible by checking network exposure, firewall rules, or service binding (localhost only vs. external interface)
    Affected if The endpoint is reachable from an attacker's location
  4. Check authentication configuration
    Inspect the Arduino Create Agent configuration to determine if authentication is required for the `/v2/pkgs/tools/installed` endpoint or if CORS protections are in place
    Affected if No authentication is required or CORS can be bypassed, allowing unauthenticated or cross-origin attacks

A user is affected if Arduino Create Agent version lower than 1.3.3 is installed, the vulnerable endpoint is accessible, and either authentication is not enforced or CORS protections are missing.

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.

dbcve · scoped
Upgrade available Upgrade to 1.3.3 or later
Fixed in 1.3.3
Interim mitigation

Upgrade to Arduino Create Agent version 1.3.3. No workarounds exist.

Recommended fix High confidence

1.3.3

  1. Stop the Arduino Create Agent service if currently running
  2. Download Arduino Create Agent version 1.3.3 or later from the official Arduino repository or release page
  3. Install the updated version following the standard installation procedure for your operating system
  4. Restart the Arduino Create Agent service

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Create Agent Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing3.0 h
  • Review / QA2.0 h
9.0 hours of engineering $1,570
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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-2023-43803 in production — separate from our analysis above.

No notes yet

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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
  • No spam, self-promotion, credentials, or personal data