CVE-2026-15297
Newsletter, SMTP, Email marketing and Subscribe forms by Brevo (formely Sendinblue) <= 3.1.77 - Reflected Cross-Site Scripting
- State
- Published
- Severity
- 6.1 Medium
- Published
- Jul 10, 2026
- Updated
- Jul 10, 2026
- Reserved
- Jul 9, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.1 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N | Wordfence |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
Brevo – Email, SMS, Web Push, Chat, and more.neeraj_slit |
|
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/bf4cb79e-e62b-4991-8ee5-493dafe38b80?source=cve
- https://plugins.trac.wordpress.org/browser/mailin/trunk/inc/table-forms.php#L102
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3055756%40mailin%2Ftrunk&old=3032712%40mailin%2Ftrunk&sfp_email=&sfph_mail=
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