	wp.updates.installImporterError = function( response ) {
		var errorMessage = wp.updates.l10n.installFailed.replace( '%s', response.errorMessage );

		if ( ! wp.updates.isValidResponse( response, 'install' ) ) {
			return;
		}

		if ( wp.updates.maybeHandleCredentialError( response, 'install-plugin' ) ) {
			return;
		}

		wp.updates.addAdminNotice( {
			id:        response.errorCode,
			className: 'notice-error is-dismissible',
			message:   errorMessage
		} );

		$( 'a[href*="' + response.slug + '"]' ).removeClass( 'updating-message' );

		wp.a11y.speak( errorMessage, 'assertive' );

		$document.trigger( 'wp-importer-install-error', response );
	};
The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request.