Vulnerabilities and security researches forcontact-form-7-signature-addon contact-form-7-signature-addon

Oct 20, 2026

CVE, Research URL: CVE-2026-104246
Home page URL: Security reports for Contact Form 7 Signature Addon
Application: Contact Form 7 Signature Addon
Date: Oct 17, 2026
Research Description: The Contact Form 7 Signature Addon WordPress plugin through 4.2.2 does not sanitize a signature field value before building an email attachment path from it, allowing unauthenticated users to attach arbitrary files (bounded to wp-content on current Contact Form 7) to a form's outgoing email via path traversal; when a form is configured to email a copy to a submitter-controlled address, the attacker can read the targeted file.
Affected versions: max 4.2.2.
Status: vulnerable