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Mailchimp List Subscribe Form vulnerabilities
Mailchimp List Subscribe Form has 1 known vulnerability in this database. The most recent published record is dated 19 Feb 2026.
- Known vulnerabilities
- 1
- Active installs
- 60,000+
- Latest version
- 2.1.0
- Last updated
- 3 Jun 2026
- Most recent
- 19 Feb 2026
Find it in your WordPress dashboard under Plugins. Severity is based on the CVSS score published with the CVE where one is available.
| Vulnerability | Severity | Affected | Fix | Published |
|---|---|---|---|---|
| Cross-site request forgery (CSRF) CVE-2025-12172 | Medium 4.3 | Up to 2.0.0 | Fixed in a later version (latest 2.1.0) | 19 Feb 2026 |
Read the published descriptions
- CVE-2025-12172, 19 Feb 2026
- 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. CVE record
What to do if you run Mailchimp List Subscribe Form
If you run Mailchimp List Subscribe Form, open WordPress and check the installed version in Plugins. Compare it with the affected versions in the vulnerability record. If a fixed version is available, take a current backup and update to that version or the latest supported release.
If no fixed version exists, consider disabling and removing the plugin or replacing it with a maintained alternative. After dealing with the affected software, check administrator users, unexpected file changes, redirects, unfamiliar pages and security logs for signs that the site may already have been altered.
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