Known vulnerabilities in MailPoet – Newsletters, Email Marketing, and Automation

Send beautiful newsletters from WordPress. Collect subscribers with signup forms, automate your emails for WooCommerce, blog post notifications & more

4Reported vulnerabilities

6.1Highest CVSS score

5.35.1Latest version

500,000+Active installs

What to do now

Update MailPoet – Newsletters, Email Marketing, and Automation to 5.33.1 or later. 4 of these have a fixed version available. Updating resolves them.

Plugin last updated: August 11, 2026 / Tested up to WordPress: 7.0.4 / View on wordpress.org

Reported vulnerabilities

Ordered by how urgently they need attention — whether a vulnerability is actually being exploited, and how likely exploitation is, rather than CVSS severity alone.

CVE	Severity	Exploit probability next 30 days	Affected versions	Fixed in	Published
CVE-2019-11843	Medium 6.1	1.8%	Before 3.23.2	`3.23.2`	June 2, 2020
CVE-2024-12743	Medium 4.4	0.3%	5.5.1 and earlier	`5.5.2`	March 6, 2025
CVE-2024-10103	Medium 4.4	0.3%	5.3.1 and earlier	`5.3.2`	October 29, 2024
CVE-2026-57626	Medium 4.3	0.1%	5.30.0 to 5.33.0 (inclusive)	`5.33.1`	July 21, 2026

Sources: vulnerability records from NVD, exploitation from CISA KEV, exploit probability from EPSS. Affected versions come from CPE ranges or from the reporting CNA.