CVE-2023-38303 Cross-site scripting in n/a

Medium 5.4 Published 31 Jul 2023 Updated 22 Oct 2024

Stored XSS in Webmin allows attackers to achieve remote command execution via the Users and Groups real name parameter.

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

What is CVE-2023-38303?

CVE-2023-38303 is a medium-severity cross-site scripting vulnerability in Webmin Webmin, published on 31 Jul 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

An issue was discovered in Webmin 2.021. One can exploit a stored Cross-Site Scripting (XSS) attack to achieve Remote Command Execution (RCE) through the Users and Group's real name parameter.

Weakness: CWE-79

Which versions are affected by CVE-2023-38303?

It affects 1 product.

Products include Webmin Webmin.

How do I fix CVE-2023-38303?

No fix has been published for CVE-2023-38303 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-2023-38303 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-38303 exists.

All Webmin Webmin vulnerabilities

Sources

Also known as GHSA-f4fw-wg3g-qwc8.