Email Subscribers & Newsletters <= 5.3.1 - Authenticated SQL Injection

The Email Subscribers & Newsletters WordPress plugin before 5.3.2 does not correctly escape the order and orderby parameters to the ajaxfetchreportlist action, making it vulnerable to blind SQL injection attacks by users with roles as low as Subscriber. Further, it does not have any CSRF protecti...

EUVD-2026-68046

The Newsletters WordPress plugin before 4.17 does not perform any nonce or capability check when saving one of its settings screens, and writes every submitted parameter into its own options, allowing attackers to make a logged in administrator overwrite arbitrary Newsletters WordPress plugin...

EUVD-2026-68045

The Newsletters WordPress plugin before 4.17 does not generate its API key using a sufficiently random source, deriving it from a publicly known value, allowing unauthenticated attackers to compute the key and perform privileged actions such as adding and deleting subscribers and sending emails,...

WordPress Newsletters plugin <= 4.17 - Authenticated (Author+) Arbitrary Modification via 'newsletters_mailinglistsroles' POST Parameter vulnerability

Authenticated Author+ Arbitrary Modification via 'newslettersmailinglistsroles' POST Parameter vulnerability discovered by Wordfence PRISM - Wordfence in WordPress Plugin Newsletters versions = 4.17...

CVE-2026-75908

The Newsletters plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.17. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with author-level access and...

CVE-2026-75908 Newsletters <= 4.17 - Missing Authorization to Authenticated (Author+) Arbitrary Modification via 'newsletters_mailinglistsroles' POST Parameter

The Newsletters plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.17. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with author-level access and...

EUVD-2026-65464

The Newsletters plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.17. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with author-level access and...

CVE-2026-75908

The Newsletters plugin for WordPress (all versions up to and including 4.17 ) is susceptible to an authorization bypass due to missing verification of user permissions. An authenticated attacker with author-level access or above can forge the newsletters_mailinglistsroles POST field during a norm...

PT-2026-81271

The Newsletters plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.17. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with author-level access and...

CVE-2026-16269

The Newsletters WordPress plugin before 4.16 does not strictly compare its API authentication key, allowing unauthenticated attackers to bypass the API authentication via type juggling and perform privileged actions such as modifying subscriber records and sending emails, when the optional API ha...

CVE-2026-16267

The Newsletters WordPress plugin before 4.16 does not restrict the classes allowed when unserialising a value taken from a public form submission, allowing unauthenticated attackers to inject arbitrary PHP objects...

EUVD-2026-54729

The Newsletters WordPress plugin before 4.16 does not restrict the classes allowed when unserialising a value taken from a public form submission, allowing unauthenticated attackers to inject arbitrary PHP objects...

CVE-2026-16267

The Newsletters WordPress plugin before 4.16 does not restrict the classes allowed when unserialising a value taken from a public form submission, allowing unauthenticated attackers to inject arbitrary PHP objects...

EUVD-2026-54730

The Newsletters WordPress plugin before 4.16 does not strictly compare its API authentication key, allowing unauthenticated attackers to bypass the API authentication via type juggling and perform privileged actions such as modifying subscriber records and sending emails, when the optional API ha...

CVE-2026-16267

The Newsletters WordPress plugin before 4.16 does not restrict the classes allowed when unserialising a value taken from a public form submission, allowing unauthenticated attackers to inject arbitrary PHP objects...

CVE-2026-16269

The Newsletters WordPress plugin (versions prior to 4.16 ) contains an authentication bypass vulnerability when the optional API is enabled. The root cause is a failure to strictly compare the API authentication key , which allows unauthenticated attackers to leverage type juggling to bypass secu...

CVE-2026-16269

The Newsletters WordPress plugin before 4.16 does not strictly compare its API authentication key, allowing unauthenticated attackers to bypass the API authentication via type juggling and perform privileged actions such as modifying subscriber records and sending emails, when the optional API ha...

CVE-2026-16268

The Newsletters WordPress plugin before 4.16 does not authenticate or validate a bounce-processing request before fetching a user-supplied URL on the server side, allowing unauthenticated attackers to make the site issue requests to arbitrary internal or external hosts...

CVE-2026-16268 Newsletters < 4.16 - Unauthenticated Server-Side Request Forgery via SNS Bounce Handler

The Newsletters WordPress plugin before 4.16 does not authenticate or validate a bounce-processing request before fetching a user-supplied URL on the server side, allowing unauthenticated attackers to make the site issue requests to arbitrary internal or external hosts...

CVE-2026-16268 Newsletters < 4.16 - Unauthenticated Server-Side Request Forgery via SNS Bounce Handler

The Newsletters WordPress plugin before 4.16 does not authenticate or validate a bounce-processing request before fetching a user-supplied URL on the server side, allowing unauthenticated attackers to make the site issue requests to arbitrary internal or external hosts...