What is CVE-2026-15297?

CVE-2026-15297 is a medium-severity vulnerability in Neeraj Slit Brevo – Email, Sms, Web Push, Chat, And More., classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-07-10.

How severe is CVE-2026-15297?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Neeraj Slit Brevo – Email, Sms, Web Push, Chat, And More.

CVE-2026-15297

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (17.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Neeraj_slit Brevo – Email, Sms, Web Push, Chat, And More. — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2026-15297?: CVE-2026-15297 is a medium-severity vulnerability in Neeraj Slit Brevo – Email, Sms, Web Push, Chat, And More., classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-07-10.
How severe is CVE-2026-15297?: Medium severity. CVSS v3 base score is 6.1 out of 10.