diff --git a/assets/src/js/public/components/single-listing-page/slider.js b/assets/src/js/public/components/single-listing-page/slider.js
index b8dc8b9761..c379da6db0 100644
--- a/assets/src/js/public/components/single-listing-page/slider.js
+++ b/assets/src/js/public/components/single-listing-page/slider.js
@@ -6,18 +6,6 @@ document.addEventListener('DOMContentLoaded', () => {
             containerID: "directorist-single-listing-slider",
         });
         single_listing_slider.init();
-        
-        var singleListingSlider = document.getElementById("directorist-single-listing-slider");
-
-        var width = singleListingSlider.getAttribute("data-width");
-        var height = singleListingSlider.getAttribute("data-height");
-        
-        if(width) {
-            singleListingSlider.style.setProperty('width', width + "px");           
-        }        
-        if(height) {
-            singleListingSlider.style.setProperty('height', height + "px");            
-        }
     }
 
     /* Related listings slider */
diff --git a/templates/single/slider.php b/templates/single/slider.php
index 61728ab150..6fdc1ef727 100644
--- a/templates/single/slider.php
+++ b/templates/single/slider.php
@@ -11,6 +11,20 @@
    return;
 }
 $img_size_class = ( 'contain' === $data['background-size'] ) ? '' : ' plasmaSlider__cover';
+
+$allowed_attr_for_image_item = [
+	'class'    => true,
+	'alt'      => true,
+	'src'      => true,
+	'data-src' => true,
+	'data-alt' => true,
+];
+
+$allowed_html_for_image_item = [
+	'img'  => $allowed_attr_for_image_item,
+	'span' => $allowed_attr_for_image_item,
+];
+
 ?>
 <div id="directorist-single-listing-slider" class="plasmaSlider"
 	data-width="<?php echo esc_attr( $data['width'] ); ?>"