CVE Catalog

CVE-2026-15297

MediumCVSS 6.1
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.26%

17th percentile - higher than 17% of all known CVEs

Summary

The Brevo (formerly Sendinblue) plugin for WordPress, used for newsletters, SMTP, and email marketing, is vulnerable to Reflected Cross-Site Scripting (XSS) via the 'page' parameter in all versions up to and including 3.1.77. This is due to insufficient input sanitization and output escaping.

Risk Assessment

An unauthenticated attacker can inject arbitrary web scripts that execute in a victim's browser if they trick the user into clicking a crafted link. This could lead to session hijacking, admin account takeover, or sensitive data leakage.

Recommendation

Immediately update the Brevo plugin to the latest available version. If no update is available, temporarily disable the plugin until a patch is released.

Related vulnerabilities

Original NVD description (English source)

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 data from NVD (NIST) · CISA KEV · EPSS