CVE-2026-77820 WPComplete <= 2.9.9.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'empty' Shortcode Attribute

The WPComplete plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'empty' Shortcode Attribute in all versions up to, and including, 2.9.9.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level...