What the vulnerability does
01Description
The MC4WP: Mailchimp for WordPress plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'email' parameter when a placeholder such as {email} is used for the field in versions 4.9.9 to 4.9.16 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.
Explanation of Vulnerability in Simple Terms
02Summary
MC4WP: Mailchimp for WordPress versions 4.9.9 through 4.9.16 contain a cross-site scripting (XSS) vulnerability. An attacker can inject malicious scripts that execute in a visitor's browser when they interact with affected plugin functionality. The vulnerability requires user interaction and can affect other users or the site itself depending on context.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that run in visitors' browsers to steal data, redirect users, or deface content.
Potential impact on your site
04Site Impact
Visitors may be redirected, have data stolen, or see altered content when using the Mailchimp signup form or related features.
Conditions required to exploit
05Prerequisites
Visitor must interact with the affected plugin feature (click a link, submit a form, or visit a page).
Key dates
06Disclosure timeline
September 19, 2024
CVE published
September 25, 2024
Record updated
