CVE-2026-6227: Improper Limitation of a Pathname to a Restricted Directory

The BackWPup plugin for WordPress is vulnerable to Local File Inclusion via the blockname parameter of the /wp-json/backwpup/v1/getblock REST endpoint in all versions up to, and including, 5.6.6 due to a non-recursive strreplace sanitization of path traversal sequences. This makes it possible for...