CVE-2024-9204 Smart Custom 404 Error Page <= 11.4.7 - Reflected Cross-Site Scripting
Unauthenticated attackers can inject arbitrary web scripts via the REQUEST_URI parameter, potentially executing code in victim browsers.
- 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-2024-9204?
CVE-2024-9204 is a medium-severity cross-site scripting vulnerability in nerdpressteam Smart Custom 404 Error Page, published on 4 Oct 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 Smart Custom 404 Error Page plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via $_SERVER['REQUEST_URI'] in all versions up to, and including, 11.4.7 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-2024-9204?
It affects 1 product.
Products include Nerdpress Smart Custom 404 Error Page.
How do I fix CVE-2024-9204?
No fix has been published for CVE-2024-9204 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-2024-9204 being exploited?
There is no known exploitation of CVE-2024-9204 in the wild and no public exploit code.
Sources
Also known as GHSA-8q9m-fx9g-p437.