diff -r 7b1b88e27a20 -r 48c4eec2b7e6 wp/wp-includes/js/thickbox/thickbox.js
--- a/wp/wp-includes/js/thickbox/thickbox.js	Thu Sep 29 08:06:27 2022 +0200
+++ b/wp/wp-includes/js/thickbox/thickbox.js	Fri Sep 05 18:40:08 2025 +0200
@@ -76,10 +76,17 @@
 	   		baseURL = url;
 	   }
 
-	   var urlString = /\.jpg$|\.jpeg$|\.png$|\.gif$|\.bmp$/;
+	   var urlString = /\.jpg$|\.jpeg$|\.png$|\.gif$|\.bmp$|\.webp$|\.avif$/;
 	   var urlType = baseURL.toLowerCase().match(urlString);
 
-		if(urlType == '.jpg' || urlType == '.jpeg' || urlType == '.png' || urlType == '.gif' || urlType == '.bmp'){//code to show images
+		if(urlType == '.jpg' ||
+			urlType == '.jpeg' ||
+			urlType == '.png' ||
+			urlType == '.gif' ||
+			urlType == '.bmp' ||
+			urlType == '.webp' ||
+			urlType == '.avif'
+		){//code to show images
 
 			TB_PrevCaption = "";
 			TB_PrevURL = "";
@@ -139,7 +146,7 @@
 
 			TB_WIDTH = imageWidth + 30;
 			TB_HEIGHT = imageHeight + 60;
-			jQuery("#TB_window").append("<a href='' id='TB_ImageOff'><span class='screen-reader-text'>"+thickboxL10n.close+"</span><img id='TB_Image' src='"+url+"' width='"+imageWidth+"' height='"+imageHeight+"' alt='"+caption+"'/></a>" + "<div id='TB_caption'>"+caption+"<div id='TB_secondLine'>" + TB_imageCount + TB_PrevHTML + TB_NextHTML + "</div></div><div id='TB_closeWindow'><button type='button' id='TB_closeWindowButton'><span class='screen-reader-text'>"+thickboxL10n.close+"</span><span class='tb-close-icon'></span></button></div>");
+			jQuery("#TB_window").append("<a href='' id='TB_ImageOff'><span class='screen-reader-text'>"+thickboxL10n.close+"</span><img id='TB_Image' src='"+url+"' width='"+imageWidth+"' height='"+imageHeight+"' alt='"+caption+"'/></a>" + "<div id='TB_caption'>"+caption+"<div id='TB_secondLine'>" + TB_imageCount + TB_PrevHTML + TB_NextHTML + "</div></div><div id='TB_closeWindow'><button type='button' id='TB_closeWindowButton'><span class='screen-reader-text'>"+thickboxL10n.close+"</span><span class='tb-close-icon' aria-hidden='true'></span></button></div>");
 
 			jQuery("#TB_closeWindowButton").on( 'click', tb_remove );
 
@@ -204,7 +211,7 @@
 					urlNoQuery = url.split('TB_');
 					jQuery("#TB_iframeContent").remove();
 					if(params['modal'] != "true"){//iframe no modal
-						jQuery("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>"+caption+"</div><div id='TB_closeAjaxWindow'><button type='button' id='TB_closeWindowButton'><span class='screen-reader-text'>"+thickboxL10n.close+"</span><span class='tb-close-icon'></span></button></div></div><iframe frameborder='0' hspace='0' allowtransparency='true' src='"+urlNoQuery[0]+"' id='TB_iframeContent' name='TB_iframeContent"+Math.round(Math.random()*1000)+"' onload='tb_showIframe()' style='width:"+(ajaxContentW + 29)+"px;height:"+(ajaxContentH + 17)+"px;' >"+thickboxL10n.noiframes+"</iframe>");
+						jQuery("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>"+caption+"</div><div id='TB_closeAjaxWindow'><button type='button' id='TB_closeWindowButton'><span class='screen-reader-text'>"+thickboxL10n.close+"</span><span class='tb-close-icon' aria-hidden='true'></span></button></div></div><iframe frameborder='0' hspace='0' allowtransparency='true' src='"+urlNoQuery[0]+"' id='TB_iframeContent' name='TB_iframeContent"+Math.round(Math.random()*1000)+"' onload='tb_showIframe()' style='width:"+(ajaxContentW + 29)+"px;height:"+(ajaxContentH + 17)+"px;' >"+thickboxL10n.noiframes+"</iframe>");
 					}else{//iframe modal
 					jQuery("#TB_overlay").off();
 						jQuery("#TB_window").append("<iframe frameborder='0' hspace='0' allowtransparency='true' src='"+urlNoQuery[0]+"' id='TB_iframeContent' name='TB_iframeContent"+Math.round(Math.random()*1000)+"' onload='tb_showIframe()' style='width:"+(ajaxContentW + 29)+"px;height:"+(ajaxContentH + 17)+"px;'>"+thickboxL10n.noiframes+"</iframe>");
@@ -212,7 +219,7 @@
 			}else{// not an iframe, ajax
 					if(jQuery("#TB_window").css("visibility") != "visible"){
 						if(params['modal'] != "true"){//ajax no modal
-						jQuery("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>"+caption+"</div><div id='TB_closeAjaxWindow'><button type='button' id='TB_closeWindowButton'><span class='screen-reader-text'>"+thickboxL10n.close+"</span><span class='tb-close-icon'></span></button></div></div><div id='TB_ajaxContent' style='width:"+ajaxContentW+"px;height:"+ajaxContentH+"px'></div>");
+						jQuery("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>"+caption+"</div><div id='TB_closeAjaxWindow'><button type='button' id='TB_closeWindowButton'><span class='screen-reader-text'>"+thickboxL10n.close+"</span><span class='tb-close-icon' aria-hidden='true'></span></button></div></div><div id='TB_ajaxContent' style='width:"+ajaxContentW+"px;height:"+ajaxContentH+"px'></div>");
 						}else{//ajax modal
 						jQuery("#TB_overlay").off();
 						jQuery("#TB_window").append("<div id='TB_ajaxContent' class='TB_modal' style='width:"+ajaxContentW+"px;height:"+ajaxContentH+"px;'></div>");