Ticket #41441: 41441.diff

src/wp-admin/includes/theme.php

@@ -748 +748 @@
                         'actions'        => array(
                                 'activate'   => current_user_can( 'switch_themes' ) ? wp_nonce_url( admin_url( 'themes.php?action=activate&stylesheet=' . $encoded_slug ), 'switch-theme_' . $slug ) : null,
                                 'customize'  => $customize_action,
-                                'delete'     => current_user_can( 'delete_themes' ) ? wp_nonce_url( admin_url( 'themes.php?action=delete&stylesheet=' . $encoded_slug ), 'delete-theme_' . $slug ) : null,
+                                'delete'     => ( ! is_multisite() && current_user_can( 'delete_themes' ) ) ? wp_nonce_url( admin_url( 'themes.php?action=delete&stylesheet=' . $encoded_slug ), 'delete-theme_' . $slug ) : null,
                                 'autoupdate' => wp_is_auto_update_enabled_for_type( 'theme' ) && ! is_multisite() && current_user_can( 'update_themes' )
                                         ? wp_nonce_url( admin_url( 'themes.php?action=' . $auto_update_action . '&stylesheet=' . $encoded_slug ), 'updates' )
                                         : null,