Contact Form 7 Get and Show Parameter from URL

The "Author URI" header in the plugin file is not valid.

Plugin name header in your readme is missing or invalid. Please update your readme with a valid plugin name header. Eg: "=== Example Name ==="

Tested up to: 4.1 < 6.8. The "Tested up to" value in your plugin is not set to the current version of WordPress. This means your plugin will not show up in searches, as we require plugins to be compatible and documented as tested up to the most recent version of WordPress.

Processing form data without nonce verification.

Detected usage of a possibly undefined superglobal array index: $_GET[$name]. Use isset() or empty() to check the index exists before using it

$_GET[$name] not unslashed before sanitization. Use wp_unslash() or similar

Detected usage of a non-sanitized input variable: $_GET[$name]

Processing form data without nonce verification.

Detected usage of a possibly undefined superglobal array index: $_GET[$name]. Use isset() or empty() to check the index exists before using it

$_GET[$name] not unslashed before sanitization. Use wp_unslash() or similar