Threat Entry Updated 2026-07-10

CVE-2026-15297 - Mailin Plugin

The Newsletter, SMTP, Email marketing and Subscribe forms by Brevo (formely Sendinblue) plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the page parameter in all versions up to, and including, 3.1.77 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

PLUGIN Mailin

CVE-2026-15297

MEDIUM CVSS 6.1 2026-07-10

Risk Score

Open Full Technical Breakdown

Threat Entry Updated 2026-02-18

CVE-2025-14799 - Mailin Plugin

The Brevo - Email, SMS, Web Push, Chat, and more. plugin for WordPress is vulnerable to authorization bypass due to type juggling in all versions up to, and including, 3.3.0. This is due to the use of loose comparison (==) instead of strict comparison (===) when validating the installation ID in the `/wp-json/mailin/v1/mailin_disconnect` REST API endpoint. This makes it possible for unauthenticated attackers to disconnect the Brevo integration, delete the API key, remove all subscription forms, and reset plugin settings by sending a boolean `true` value for the `id` parameter,…

PLUGIN Mailin

CVE-2025-14799

MEDIUM CVSS 6.5 2026-02-18

Risk Score

Open Full Technical Breakdown