CVE-2023-6923 Matomo <= 4.15.3 - Reflected Cross-Site Scripting via idsite

Medium 6.1 Published Updated

Unauthenticated attackers can inject arbitrary web scripts via the idsite parameter, executing code in victim browsers if they click 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-2023-6923?

CVE-2023-6923 is a medium-severity cross-site scripting vulnerability in matomoteam Matomo Analytics – Powerful, Privacy-First Insights for WordPress, published on 20 Feb 2024. 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 Matomo Analytics – Ethical Stats. Powerful Insights. plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the idsite parameter in all versions up to, and including, 4.15.3 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

Weakness: CWE-79

Which versions are affected by CVE-2023-6923?

It affects 1 product.

Products include Matomo Matomo.

How do I fix CVE-2023-6923?

No fix has been published for CVE-2023-6923 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-2023-6923 being exploited?

There is no known exploitation of CVE-2023-6923 in the wild and no public exploit code.

Sources

Also known as GHSA-246w-8f59-4f74.

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