WordPress Newsletters <= 4.13 - Unauthenticated SQL Injection

Newsletters WordPress plugin = 4.13 contains a time-based SQL injection caused by insufficient escaping of the 'wpmlsubscriberid' parameter, letting unauthenticated attackers extract sensitive database information. id: CVE-2026-3018 info: name: WordPress Newsletters = 4.13 - Unauthenticated SQL...

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...

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...

CVE-2026-16267 Newsletters < 4.16 - Unauthenticated PHP Object Injection via Date Form Field

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 Newsletters < 4.16 - Unauthenticated API Authentication Bypass via Type Juggling

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...

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-2026-16269

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 CVE-2026-16267 issue affects the Newsletters WordPress plugin prior to version 4.16, where unserialising a value from a public form submission does not restrict allowed classes, enabling unauthenticated attackers to inject arbitrary PHP objects. This is a high-severity, remote vulnerability w...

CVE-2026-16269

The Newsletters WordPress plugin (before 4.16) fails to strictly compare its API authentication key, enabling an unauthenticated bypass of API authentication through type juggling. This allows attackers to perform privileged actions when the optional API is enabled, such as modifying subscriber r...

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...

EUVD-2026-53723

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

CVE-2026-16268 affects the WordPress plugin Newsletters prior to version 4.16. The vulnerability arises because the bounce-processing request is not authenticated or validated before fetching a user-supplied URL on the server side, enabling unauthenticated attackers to induce the site to issue re...

CVE-2026-12939

The Newsletters Lite plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'link' attribute of the postthumbnail and newsletterspostthumbnail shortcodes in versions up to and including 4.15. This is due to insufficient input sanitization and output escaping in the postthumbnai...

CVE-2026-12938

The Newsletters Lite plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'target' attribute of the newsletterspost shortcode in versions up to and including 4.15. This is due to insufficient input sanitization and output escaping in the postssingle function which propagates...

CVE-2026-12939

The Newsletters Lite plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'link' attribute of the postthumbnail and newsletterspostthumbnail shortcodes in versions up to and including 4.15. This is due to insufficient input sanitization and output escaping in the postthumbnai...

CVE-2026-12939

The CVE-2026-12939 entry describes a Stored Cross-Site Scripting vulnerability in the WordPress Newsletters Lite plugin (versions up to 4.15). The issue stems from the post_thumbnail() function in helpers/shortcode.php, which concatenates the user-controlled $link attribute directly into an href ...