Reflected Cross-Site Scripting in Brevo Plugin for WordPress
CVE-2026-15297

6.1MEDIUM

Key Information:

Vendor

WordPress
Status
Brevo – Email, Sms, Web Push, Chat, And More.
Vendor
CVE Published:
10 July 2026

What is CVE-2026-15297?

The Brevo (formerly Sendinblue) plugin for WordPress has a reflected cross-site scripting vulnerability due to inadequate input sanitization and output escaping. This flaw affects all versions up to and including 3.1.77. Attackers can exploit this vulnerability to inject malicious scripts into web pages, potentially tricking users into executing harmful actions by clicking on manipulated links. Website administrators should ensure they are using an updated version of the plugin to mitigate this risk.

Affected Version(s)

Brevo – Email, SMS, Web Push, Chat, and more. 0 <= 3.1.77

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/mailin/trunk/i...
https://plugins.trac.wordpress.org/changeset?sfp_email=&s...

CVSS V3.1

Score:
6.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

stealthcopter
.