WordPress plugin vulnerabilities

Brevo - Email, SMS, Web Push, Chat, and more. vulnerabilities

Known security issues in the Brevo - Email, SMS, Web Push, Chat, and more. WordPress plugin, by affected version, with severity, CVE and the version that fixes each one.

Plugin slug
mailin
Latest version
3.3.5
Active installs
100,000+
Known vulnerabilities
11
Data updated
2026-10-18 07:29 UTC

View on wordpress.org

Check your version

Shown in WordPress under Plugins > Installed Plugins.

This information comes from public vulnerability databases and may be incomplete or out of date. A plugin with no known vulnerabilities is not proof that it is secure; keep plugins updated and remove the ones you do not use.

Fixed in version 3.3.1 (1)

Brevo - Email, SMS, Web Push, Chat, and more.: Fixed in version 3.3.1
VulnerabilitySeverityCVSSAffected versionsPublished
Brevo - Email, SMS, Web Push, Chat, and more. <= 3.3.0 - Unauthenticated Authorization Bypass via Type Juggling
CVE-2025-14799 · Source
Medium6.5< 3.3.12026-02-17

Fixed in version 3.1.88 (1)

Brevo - Email, SMS, Web Push, Chat, and more.: Fixed in version 3.1.88
VulnerabilitySeverityCVSSAffected versionsPublished
Newsletter, SMTP, Email marketing and Subscribe forms by Brevo (formely Sendinblue) <= 3.1.87 - Cross-Site Request Forgery
CVE-2024-8477 · Source
Medium4.3< 3.1.882024-10-09

Fixed in version 3.1.83 (1)

Brevo - Email, SMS, Web Push, Chat, and more.: Fixed in version 3.1.83
VulnerabilitySeverityCVSSAffected versionsPublished
WordPress Newsletter, SMTP, Email marketing and Subscribe forms by Sendinblue Plugin <= 3.1.82 is vulnerable to Cross Site Request Forgery (CSRF)
CVE-2024-43287 · Source
High8.8< 3.1.832024-08-16

Fixed in version 3.1.78 (2)

Brevo - Email, SMS, Web Push, Chat, and more.: Fixed in version 3.1.78
VulnerabilitySeverityCVSSAffected versionsPublished
WordPress Newsletter, SMTP, Email marketing and Subscribe forms by Sendinblue Plugin <= 3.1.77 is vulnerable to Cross Site Scripting (XSS)
CVE-2024-35668 · Source
Medium6.1< 3.1.782024-06-03
Newsletter, SMTP, Email marketing and Subscribe forms by Brevo (formely Sendinblue) <= 3.1.77 - Reflected Cross-Site Scripting
CVE-2026-15297 · Source
Medium6.1< 3.1.782024-03-22

Fixed in version 3.1.61 (2)

Brevo - Email, SMS, Web Push, Chat, and more.: Fixed in version 3.1.61
VulnerabilitySeverityCVSSAffected versionsPublished
Newsletter, SMTP, Email marketing and Subscribe forms by Sendinblue <= 3.1.60 - Reflected Cross-Site Scripting via 'lang'
CVE-2023-2472 · Source
Medium6.1< 3.1.612023-05-10
WordPress Newsletter, SMTP, Email marketing and Subscribe forms by Sendinblue Plugin <= 3.1.60 is vulnerable to Cross Site Scripting (XSS)
No CVE assigned · Source
Not rated-< 3.1.612023-05-11

Fixed in version 3.1.40 (1)

Brevo - Email, SMS, Web Push, Chat, and more.: Fixed in version 3.1.40
VulnerabilitySeverityCVSSAffected versionsPublished
Newsletter, SMTP, Email marketing and Subscribe forms by Sendinblue <= 3.1.39 - Cross-Site Scripting
No CVE assigned · Source
Not rated-< 3.1.402022-04-08

Fixed in version 3.1.31 (1)

Brevo - Email, SMS, Web Push, Chat, and more.: Fixed in version 3.1.31
VulnerabilitySeverityCVSSAffected versionsPublished
WordPress Newsletter, SMTP, Email marketing and Subscribe plugin <= 3.1.30 - Reflected Cross-Site Scripting (XSS) vulnerability
CVE-2021-24874 · Source
Medium6.1< 3.1.312022-01-12

Fixed in version 3.1.25 (2)

Brevo - Email, SMS, Web Push, Chat, and more.: Fixed in version 3.1.25
VulnerabilitySeverityCVSSAffected versionsPublished
Newsletter, SMTP, Email marketing and Subscribe forms by Sendinblue <= 3.1.24 - Reflected Cross-Site Scripting
CVE-2021-24923 · Source
Medium6.1< 3.1.252021-12-23
WordPress Newsletter, SMTP, Email marketing and Subscribe forms by Sendinblue plugin <= 3.1.24 - Reflected Cross-Site Scripting (XSS) vulnerability
No CVE assigned · Source
Not rated-< 3.1.252021-12-22

Check every plugin on your site automatically

Install the free Webforta Security plugin for WordPress and Webforta matches every plugin, theme and WordPress version you run against known vulnerabilities, and tells you when a new one affects your site.

Sources and attribution