CVE-2024-13898: RPETERSEN29 Simple Banner – Easily Add Multiple Banners/bars/notifications/announcements To The Top Or Bottom Of Your Website

Medium severity, CVSS 4.4. EPSS: 0.2% chance of exploitation in the next 30 days.

The Simple Banner – Easily add multiple Banners/Bars/Notifications/Announcements to the top or bottom of your website plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 3.0.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Affected products

• RPETERSEN29 Simple Banner – Easily Add Multiple Banners/bars/notifications/announcements To The Top Or Bottom Of Your Website: up to and including 3.0.4

Published 2025-04-04. Last modified 2026-06-17.