CVE-2026-104478 [HIGH] – Formwork before 2.3.13 contains a path traversal vulnerability in BackupController that al

Formwork before 2.3.13 contains a path traversal vulnerability in BackupController that allows authenticated panel users to read or delete arbitrary files. Attackers with backup download or delete permission can supply a base64-encoded backslash-separated traversal payload that bypasses PHP basename on Linux to access files outside the backup directory.