CVE-2024-8870 Forms for Mailchimp by Optin Cat – Grow Your MailChimp List <= 2.5.7 - Reflected Cross-Site Scripting
Unauthenticated attackers can inject arbitrary web scripts via reflected XSS in the Optin Cat WordPress plugin, requiring user interaction to execute.
- 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-2024-8870?
CVE-2024-8870 is a medium-severity cross-site scripting vulnerability in fatcatapps Forms for Mailchimp by Optin Cat – Grow Your MailChimp List, published on 26 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 Forms for Mailchimp by Optin Cat – Grow Your MailChimp List plugin for WordPress is vulnerable to Reflected Cross-Site Scripting due to the use of add_query_arg without appropriate escaping on the URL in all versions up to, and including, 2.5.7. 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-2024-8870?
How do I fix CVE-2024-8870?
No fix has been published for CVE-2024-8870 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-2024-8870 being exploited?
There is no known exploitation of CVE-2024-8870 in the wild and no public exploit code.
Sources
Also known as GHSA-pvw2-j6v9-6pwg.