Edit delete and manage display links appear for anonymous user??

When adding an image in wysiwyg whit media browser, the edit, delete and manage display links appear in a strange place when viewed by an anonymous user??

<div class="media media-element-container media-default">
    <div id="file-1018" class="file file-image file-image-jpeg contextual-links-region">
        <h2 class="element-invisible"></h2>
        <div class="contextual-links-wrapper">
            <ul class="contextual-links">
                <li class="file-edit first"></li>
                <li class="file-delete"></li>
                <li class="manage-display last"></li>
            </ul>
        </div>

Thx

Dadaisme