CVE-2026-6394 Nexa Blocks <= 1.1.1 - Unauthenticated Blind Server-Side Request Forgery via 'demo_json_file' Parameter

The Nexa Blocks – Gutenberg Blocks, Page Builder for Gutenberg Editor & FSE plugin for WordPress is vulnerable to Server-Side Request Forgery SSRF in versions up to and including 1.1.1. This is due to the importdemo function accepting a user-supplied URL in the demojsonfile POST parameter and...