MailPoet – Newsletters, Email Marketing, and Automation vulnerabilities
Plugin slug mailpoet · 5 known vulnerabilities · latest disclosed 2026-10-26 · WordPress.org page
Every listed vulnerability has a fix. Version 5.33.1 or later is not affected by any of them. If your site runs an older version, update it.
0 of 5 rated high or critical (CVSS 7 or more).
Known vulnerabilities in MailPoet – Newsletters, Email Marketing, and Automation
| Severity | Affected versions | Fixed in | CVE | Published | Details |
|---|---|---|---|---|---|
| Medium 6.1 | < 5.14.2 | 5.14.2 | none | 2026-10-26 | Advisory |
| Medium 4.3 | 5.30.0 to 5.33.0 | 5.33.1 | CVE-2026-57626 | 2026-07-21 | Advisory |
| Medium 4.4 | <= 5.5.1 | 5.5.2 | CVE-2024-12743 | 2025-03-06 | Advisory |
| Medium 4.4 | <= 5.3.1 | 5.3.2 | CVE-2024-10103 | 2024-10-29 | Advisory |
| Medium 6.1 | < 3.23.2 | 3.23.2 | CVE-2019-11843 | 2019-04-16 | Advisory |
Check if a site is affected
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Questions
Is the MailPoet – Newsletters, Email Marketing, and Automation plugin safe to use?
All 5 known issues are fixed in current versions (5.33.1 or later). Keeping it updated is what matters.
How do I check which version of MailPoet – Newsletters, Email Marketing, and Automation 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.