Index: src/wp-content/themes/twentyfourteen/image.php
===================================================================
--- src/wp-content/themes/twentyfourteen/image.php	(revision 28444)
+++ src/wp-content/themes/twentyfourteen/image.php	(working copy)
@@ -28,9 +28,9 @@
 
 						<span class="entry-date"><time class="entry-date" datetime="<?php echo esc_attr( get_the_date( 'c' ) ); ?>"><?php echo esc_html( get_the_date() ); ?></time></span>
 
-						<span class="full-size-link"><a href="<?php echo wp_get_attachment_url(); ?>"><?php echo $metadata['width']; ?> &times; <?php echo $metadata['height']; ?></a></span>
+						<span class="full-size-link"><a href="<?php echo esc_url( wp_get_attachment_url() ); ?>"><?php echo $metadata['width']; ?> &times; <?php echo $metadata['height']; ?></a></span>
 
-						<span class="parent-post-link"><a href="<?php echo get_permalink( $post->post_parent ); ?>" rel="gallery"><?php echo get_the_title( $post->post_parent ); ?></a></span>
+						<span class="parent-post-link"><a href="<?php echo esc_url( get_permalink( $post->post_parent ) ); ?>" rel="gallery"><?php echo get_the_title( $post->post_parent ); ?></a></span>
 						<?php edit_post_link( __( 'Edit', 'twentyfourteen' ), '<span class="edit-link">', '</span>' ); ?>
 					</div><!-- .entry-meta -->
 				</header><!-- .entry-header -->