The WordPress plugin, Email Subscribers & Newsletters, before 4.2.3 had a privilege bypass flaw that allowed authenticated users (Subscriber or greater access) to send test emails from the administrative dashboard on behalf of an administrator. This occurs because the plugin registers a wp_ajax function to send_test_email.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Email Subscribers Plugin | — | Update email-subscribers plugin to version 4.2.3, or a newer patched version | May 15, 2025 | Nov 13, 2019 |
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