CVE-2025-3774: Marcinlawrowski Wise Chat

High severity, CVSS 7.2. EPSS: 0.3% chance of exploitation in the next 30 days.

The Wise Chat plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the X-Forwarded-For header in all versions up to, and including, 3.3.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

• Marcinlawrowski Wise Chat: up to and including 3.3.4

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