CVE-2024-8680: Ibericode Mailchimp

Medium severity, CVSS 5.5. EPSS: 0.5% chance of exploitation in the next 30 days.

The MC4WP: Mailchimp for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 4.9.16 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Affected products

• Ibericode Mailchimp: before 4.9.17 (fixed in 4.9.17)

Published 2024-09-21. Last modified 2026-06-17.