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.
Link | Tags |
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https://wpvulndb.com/vulnerabilities/9946 | third party advisory |
https://www.wordfence.com/blog/2019/11/multiple-vulnerabilities-patched-in-email-subscribers-newsletters-plugin/ | third party advisory exploit |