CVE-2026-18555: Wordplus Better Messages – Chat Rooms, Group Chat, Private Messages & Ai Chat Bots

Medium severity, CVSS 6.1. EPSS: 0.2% chance of exploitation in the next 30 days.

The Better Messages – Chat Rooms, Group Chat, Private Messages & AI Chat Bots plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'icn' parameter in all versions up to, and including, 2.15.22 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.

Affected products

• Wordplus Better Messages – Chat Rooms, Group Chat, Private Messages & Ai Chat Bots: up to and including 2.15.22

Published 2026-09-16. Last modified 2026-09-18.