CVE-2023-45829: Happybox Newsletter & Bulk Email Sender

Medium severity, CVSS 5.4. EPSS: 0.4% chance of exploitation in the next 30 days.

Auth. (contributor+) Stored Cross-Site Scripting (XSS) vulnerability in HappyBox Newsletter & Bulk Email Sender – Email Newsletter Plugin for WordPress plugin <= 2.0.1 versions.

Affected products

• Happybox Newsletter & Bulk Email Sender: up to and including 2.0.1

Published 2023-10-25. Last modified 2026-06-17.