CVE-2026-96566

The Newsletter – Send awesome emails from WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'np1' Custom Field Parameter in all versions up to, and including, 9.4.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated...

EUVD-2026-91248

The Newsletter – Send awesome emails from WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'np1' Custom Field Parameter in all versions up to, and including, 9.4.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated...

CVE-2026-96566

The Newsletter – Send awesome emails from WordPress plugin is vulnerable to Stored Cross-Site Scripting (XSS) in all versions up to and including 9.4.0 . The root cause is insufficient input sanitization and output escaping within the 'np1' Custom Field Parameter . Unauthenticated attackers can i...

PT-2026-104143

Name of the Vulnerable Software and Affected Versions The Newsletter – Send awesome emails from WordPress versions prior to 9.4.1 Description Insufficient input sanitization and output escaping allow unauthenticated attackers to perform Stored Cross-Site Scripting XSS, a technique where malicious...

CVE-2026-92537

The Newsletter – Send awesome emails from WordPress plugin for WordPress is vulnerable to Insufficiently Protected Credentials in all versions up to, and including, 9.3.9 The plugin's public click-tracking REST route /tnp/l/ is registered with permissioncallback = 'returntrue' and, upon receiving...

EUVD-2026-90455

The Newsletter – Send awesome emails from WordPress plugin for WordPress is vulnerable to Insufficiently Protected Credentials in all versions up to, and including, 9.3.9 The plugin's public click-tracking REST route /tnp/l/ is registered with permissioncallback = 'returntrue' and, upon receiving...

PT-2026-103661

The Newsletter – Send awesome emails from WordPress plugin for WordPress is vulnerable to Insufficiently Protected Credentials in all versions up to, and including, 9.3.9 The plugin's public click-tracking REST route /tnp/l/ is registered with permission callback = ' return true' and, upon...

CVE-2026-92537: Insufficiently Protected Credentials

The Newsletter – Send awesome emails from WordPress plugin for WordPress is vulnerable to Insufficiently Protected Credentials in all versions up to, and including, 9.3.9 The plugin's public click-tracking REST route /tnp/l/ is registered with permissioncallback = 'returntrue' and, upon receiving...

CVE-2026-90981

The Newsletter – Send awesome emails from WordPress plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'nn' parameter in all versions up to, and including, 9.3.8 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated...

EUVD-2026-82751

The Newsletter – Send awesome emails from WordPress plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'nn' parameter in all versions up to, and including, 9.3.8 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated...

CVE-2026-90981: Improper Neutralization of Input During Web Page Generation

The Newsletter – Send awesome emails from WordPress plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'nn' parameter in all versions up to, and including, 9.3.8 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated...

PT-2026-95298

Name of the Vulnerable Software and Affected Versions The Newsletter – Send awesome emails from WordPress versions prior to 9.3.9 Description Reflected Cross-Site Scripting occurs due to insufficient input sanitization and output escaping. Unauthenticated attackers can inject arbitrary web script...

CVE-2026-86824

The Newsletter WordPress plugin before 9.3.8 does not generate its email tracking signing key with sufficient entropy and signs its tracking links with an unkeyed hash, allowing an unauthenticated attacker who recovers that key offline to forge tracking links, obtain any subscriber's session toke...

CVE-2026-1051: Cross-Site Request Forgery (CSRF)

The Newsletter – Send awesome emails from WordPress plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 9.1.0. This is due to missing or incorrect nonce validation on the hooknewsletteraction function. This makes it possible for unauthenticated...

PT-2025-24403 · WordPress · The Newsletter

Name of the Vulnerable Software and Affected Versions: The Newsletter WordPress plugin versions prior to 8.85 Description: The issue allows high privilege users, such as admins, to perform Stored Cross-Site Scripting attacks. This is possible because the plugin does not properly sanitise and esca...

PT-2025-24402 · WordPress · The Newsletter

Name of the Vulnerable Software and Affected Versions: The Newsletter WordPress plugin versions prior to 8.8.5 Description: The issue concerns a lack of validation and escaping of certain Widget options in the plugin, which can lead to Stored Cross-Site Scripting attacks. This can be exploited by...

CVE-2025-3582: Improper Neutralization of Input During Web Page Generation

The Newsletter WordPress plugin before 8.85 does not sanitise and escape some of its Form settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfilteredhtml capability is disallowed for example in multisite setup...

CVE-2025-3581: Improper Neutralization of Input During Web Page Generation

The Newsletter WordPress plugin before 8.8.5 does not validate and escape some of its Widget options before outputting them back in a page/post where the block is embed, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfilteredhtm...

PT-2025-23586 · WordPress · The Newsletter

Name of the Vulnerable Software and Affected Versions: The Newsletter WordPress plugin versions prior to 8.8.2 Description: The issue allows high privilege users, such as admins, to perform Stored Cross-Site Scripting attacks, even when the unfiltered html capability is disallowed, for example, i...

CVE-2025-3584: Improper Neutralization of Input During Web Page Generation

The Newsletter WordPress plugin before 8.8.2 does not sanitise and escape some of its Subscription settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfilteredhtml capability is disallowed for example in multisite setup...