CVE-2023-43803: Arduino Create Agent is a package to help manage Arduino development. This vulnerability affects the endpoint `/v2/pkgs/tools/installed` and the way i...

Description

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.

Metrics

CVSS 3.1

7.1/10

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

EPSS Probability

0.33%

24.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Arduino	Create Agent	< 1.3.3

References

Timeline

Published: Oct 18, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-43803?

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.

How severe is CVE-2023-43803?

CVE-2023-43803 has a CVSS score of 7.1/10 (HIGH severity). The EPSS model estimates a 0.33% probability of exploitation in the next 30 days.

How do I fix CVE-2023-43803?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.