Vulnerability in Email Subscribers & Newsletters – Email Marketing, Post Notifications & Newsletter Plugin for WordPress — CVE-2026-12757

What to do now

Update Email Subscribers & Newsletters – Email Marketing, Post Notifications & Newsletter Plugin for WordPress to 5.9.28 or later.

Affected versions

• Everything up to and including 5.9.27

The The Email Subscribers & Newsletters – Email Marketing, Post Notifications & Newsletter Plugin for WordPress plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 5.9.27. This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes.

This description is reproduced verbatim from the public vulnerability record.

• https://plugins.trac.wordpress.org/browser/email-subscribers/tags/5.9.22/lite/includes/classes/class-es-handle-subscription.php#L165
• https://plugins.trac.wordpress.org/browser/email-subscribers/tags/5.9.22/lite/includes/classes/class-es-handle-subscription.php#L260
• https://plugins.trac.wordpress.org/browser/email-subscribers/tags/5.9.22/lite/includes/classes/class-es-mailer.php#L1133
• https://plugins.trac.wordpress.org/browser/email-subscribers/tags/5.9.22/lite/includes/workflows/actions/class-es-action-send-email.php#L188
• https://plugins.trac.wordpress.org/browser/email-subscribers/tags/5.9.26/lite/includes/classes/class-es-handle-subscription.php#L165
• https://plugins.trac.wordpress.org/browser/email-subscribers/tags/5.9.26/lite/includes/classes/class-es-handle-subscription.php#L260

This page is compiled automatically from public databases. Accuracy is not guaranteed; confirm against the vendor advisory before acting.