CVE-2023-49296 Arduino Create Agent vulnerable to Reflected Cross-Site Scripting

Medium 6.3 Published Updated

An attacker can execute arbitrary browser client-side code via reflected XSS in the Arduino Create Agent web interface by tricking a user into clicking a malicious link.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2023-49296?

CVE-2023-49296 is a medium-severity cross-site scripting vulnerability in arduino-create-agent, published on 13 Dec 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

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.

Weakness: CWE-79

Which versions are affected by CVE-2023-49296?

It affects 1 product.

Products include Arduino Create Agent.

How do I fix CVE-2023-49296?

No fix has been published for CVE-2023-49296 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2023-49296 being exploited?

There is no known exploitation of CVE-2023-49296 in the wild and no public exploit code.

Sources

Also known as GHSA-j5hc-wx84-844h.

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