CVE-2025-12172

Medium

Description

The Mailchimp List Subscribe Form plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.0.0. This is due to missing or incorrect nonce validation on the mailchimp_sf_change_list_if_necessary() function. This makes it possible for unauthenticated attackers to change Mailchimp lists via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

SeverityMedium
CVSS4.3
Exploit probability—
ProductMailchimp List Subscribe Form
PublishedFeb 19, 2026
First seenFeb 19, 2026

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
mailchimp Mailchimp List Subscribe Formv ≤ 2.0.0—

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