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CVE-2026-15297

MEDIUM 6.1 CVSS 3.1
Published
July 10, 2026
Last modified
July 10, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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.

Affected WordPress components

  • Brevo – Email, SMS, Web Push, Chat, and more. Plugin · mailin
    Confirmed match Active
    Up to and including 3.1.77
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • neeraj_slit Brevo – Email, SMS, Web Push, Chat, and more. — Up to and including 3.1.77

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/mailin/trunk/inc/table-forms.php#L102
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3055756%40mailin%2Ftrunk&old=3032712%40mailin%2Ftrunk&sfp_email=&sfph_mail=
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/bf4cb79e-e62b-4991-8ee5-493dafe38b80?source=cve
  • nvd.nist.gov Official NVD record