CVE-2024-9210
MC4WP: Mailchimp Top Bar <= 1.6.0 - Reflected Cross-Site Scripting
CVSS Score
6.1
EPSS Score
0.0%
EPSS Percentile
0th
The MC4WP: Mailchimp Top Bar 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, 1.6.0. 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 | dvankooten |
| Product | mc4wp: mailchimp top bar |
| Published | Oct 2, 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
dvankooten / MC4WP: Mailchimp Top Bar
0 ≤ 1.6.0
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/b45ba98f-4cd1-406a-8661-e19d5b4c3ba8?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/mailchimp-top-bar/tags/1.6.0/views/settings-page.php#L40 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/mailchimp-top-bar/tags/1.6.1/views/settings-page.php#L40
Credits
vgo0