Ticket #29539: 29539.patch

src/wp-admin/includes/plugin-install.php

@@ -362 +362 @@
                 'div' => array( 'class' => array() ), 'span' => array( 'class' => array() ),
                 'p' => array(), 'ul' => array(), 'ol' => array(), 'li' => array(),
                 'h1' => array(), 'h2' => array(), 'h3' => array(), 'h4' => array(), 'h5' => array(), 'h6' => array(),
-                'img' => array( 'src' => array(), 'class' => array(), 'alt' => array() )
+                'img' => array( 'src' => array(), 'class' => array(), 'alt' => array() ),
+                'iframe' => array( 'width' => array(), 'height' => array(), 'frameborder' => array(), 'allowfullscreen' => array(), 'src' => array() )
         );
 
         $plugins_section_titles = array(