Newsletter, SMTP, Email marketing and Subscribe forms by Brevo (formely Sendinblue) <= 3.1.77 - Reflected Cross-Site Scripting
| CVE | CVE-2026-15297 |
|---|---|
| CVSS | 6.1 (Medium) |
| Publicly Published | March 22, 2024 |
| Last Updated | July 10, 2026 |
| Researcher |
stealthcopter
|
Description
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.
Learn more about Cross-Site Scripting vulnerabilities and how to prevent them.
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Vulnerability Details for Brevo – Email, SMS, Web Push, Chat, and more.
| Software Type | Plugin |
|---|---|
| Software Slug | mailin (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 3.1.78, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in Brevo – Email, SMS, Web Push, Chat, and more.
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