Cross-Site Request Forgery (CSRF) vulnerability in Brevo Newsletter, SMTP, Email marketing and Subscribe forms by Sendinblue.This issue affects Newsletter, SMTP, Email marketing and Subscribe forms by Sendinblue: from n/a through 3.1.82.

The SMTP for Sendinblue – YaySMTP plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 1.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The Newsletter, SMTP, Email marketing and Subscribe forms by Sendinblue WordPress plugin before 3.1.31 does not escape the lang and pid parameter before outputting them back in attributes, leading to Reflected Cross-Site Scripting issues

The Newsletter, SMTP, Email marketing and Subscribe forms by Sendinblue WordPress plugin before 3.1.25 does not escape the sib-statistics-date parameter before outputting it back in an attribute, leading to a Reflected Cross-Site Scripting issue

The Newsletter, SMTP, Email marketing and Subscribe forms by Sendinblue WordPress plugin before 3.1.61 does not sanitise and escape a parameter before outputting it back in the admin dashboard when the WPML plugin is also active and configured, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin