Index: wp-admin/includes/ajax-actions.php
===================================================================
--- wp-admin/includes/ajax-actions.php	(révision 23907)
+++ wp-admin/includes/ajax-actions.php	(copie de travail)
@@ -728,7 +728,8 @@
 	if ( ! $post )
 		wp_die( -1 );
 
-	if ( !current_user_can( 'edit_post', $comment_post_ID ) )
+	$comment_parent = absint($_POST['comment_ID']);
+	if ( !current_user_can( 'edit_comment', $comment_parent ) )
 		wp_die( -1 );
 
 	if ( empty( $post->post_status ) )
@@ -756,7 +757,6 @@
 	if ( '' == $comment_content )
 		wp_die( __( 'ERROR: please type a comment.' ) );
 
-	$comment_parent = absint($_POST['comment_ID']);
 	$comment_auto_approved = false;
 	$commentdata = compact('comment_post_ID', 'comment_author', 'comment_author_email', 'comment_author_url', 'comment_content', 'comment_type', 'comment_parent', 'user_ID');