Mailmunch Forms for Mailchimp vulnerabilities
Plugin slug mailchimp-forms-by-mailmunch · 6 known vulnerabilities · latest disclosed 2026-08-04 · WordPress.org page
Every listed vulnerability has a fix. Version 3.2.8 or later is not affected by any of them. If your site runs an older version, update it.
1 of 6 rated high or critical (CVSS 7 or more).
Known vulnerabilities in Mailmunch Forms for Mailchimp
| Severity | Affected versions | Fixed in | CVE | Published | Details |
|---|---|---|---|---|---|
| High 8.1 | <= 3.2.7 | 3.2.8 | CVE-2026-7520 | 2026-08-04 | Advisory |
| Medium 6.1 | <= 3.2.3 | 3.2.4 | CVE-2024-8726 | 2024-11-19 | Advisory |
| Medium 4.3 | <= 3.2.1 | 3.2.2 | CVE-2024-31378 | 2024-04-10 | Advisory |
| Medium 6.4 | <= 3.2.2 | 3.2.3 | CVE-2024-29793 | 2024-03-25 | Advisory |
| Medium 5.4 | <= 3.1.7 | 3.1.8 | CVE-2023-45748 | 2023-10-12 | Advisory |
| Medium 5.4 | <= 3.1.4 | 3.1.5 | CVE-2023-40203 | 2023-08-11 | Advisory |
Check if a site is affected
Enter a site address to see which version of Mailmunch Forms for Mailchimp and other plugins it runs, and whether they match a known vulnerability.
Questions
Is the Mailmunch Forms for Mailchimp plugin safe to use?
All 6 known issues are fixed in current versions (3.2.8 or later). Keeping it updated is what matters.
How do I check which version of Mailmunch Forms for Mailchimp my site runs?
In WordPress go to Plugins > Installed Plugins. From the outside, the free PluginPeek scan below reads the version from the site's public files.
How do I fix a vulnerable plugin?
Make a full backup, then update it from Dashboard > Updates and check the site afterwards. If you would rather not, we can do it for a fixed $99, paid after you have checked the site.