CVE-2024-8870
Forms for Mailchimp by Optin Cat – Grow Your MailChimp List <= 2.5.7 - Reflected Cross-Site Scripting
CVSS Score
6.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-79 |
| Vendor | fatcatapps |
| Product | forms for mailchimp by optin cat – grow your mailchimp list |
| Published | Oct 26, 2024 |
| Last Updated | Apr 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
fatcatapps / Forms for Mailchimp by Optin Cat – Grow Your MailChimp List
0 ≤ 2.5.6
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/86389489-9f9d-479b-b351-19f25166fc91?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/mailchimp-wp/trunk/includes/eoi-subscribers.php#L353 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset/3198558/mailchimp-wp/trunk/includes/eoi-subscribers.php
Credits
vgo0