Metform Elementor Contact Form Builder, CVE-2026-86813

CVE, Research URL: CVE-2026-86813
Home page URL: Security reports for Metform Elementor Contact Form Builder
Application: Metform Elementor Contact Form Builder
Published on: Sep 11, 2026
Research Description: The MetForm WordPress plugin before 4.1.9 does not properly neutralize newline characters in user-submitted values that are placed into notification email headers, allowing unauthenticated attackers to inject additional email headers, such as Bcc, into the emails the site sends when a submitted field value is configured to populate a header.
Affected versions: max 4.1.9.
Status: vulnerable