CVE-2026-65438

An unauthenticated Cross Site Scripting (XSS) vulnerability exists in the Message Filter for Contact Form 7 versions up to 1.6.3.9, allowing attackers to inject malicious scripts into web pages viewed by users. This can lead to session hijacking, data theft, or defacement of the affected site. Organizations using these versions of the plugin should prioritize patching to mitigate potential exploitation risks.