[ CVE-2026-104246 · Published 17 Oct 2026 ]
Vulnerability in Unknown Contact Form 7 Signature Addon
CVSS 5.9
EPSS <1%No fix listed yet
[ Description ]Official 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.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.