XSS in Arduino Arduino-Create-Agent

CVE-2023-49296

The Arduino Create Agent allows users to use the Arduino Create applications to upload code to any USB connected Arduino board directly from the browser. A vulnerability in versions prior to 1.3.6 affects the endpoint `/certificate.crt` and the way the web interface of the ArduinoCreateAgent handles custom error messages. An attacker that is able to persuade a victim into clicking on a malicious link can perform a Reflected Cross-Site Scripting attack on the web interface of the create agent, which would allow the attacker to execute arbitrary browser client side code. Version 1.3.6 contains a fix for the issue.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (17.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2023-49296?
CVE-2023-49296 is a medium-severity vulnerability in Arduino Arduino-Create-Agent, classified under Cross-site Scripting. CVSS score: 6.3/10. Published 2023-12-13.
How severe is CVE-2023-49296?
Medium severity. CVSS v3 base score is 6.3 out of 10.