diff --git a/script.js b/script.js
index 7f20156..bf24f36 100644
--- a/script.js
+++ b/script.js
@@ -294,10 +294,26 @@
       el.textContent = msg || '';
     }
 
-    function getSectok() {
+    function getSectok(root) {
+      // Prefer a token embedded with the rendered scratchpad.
+      try {
+        if (root && root.getAttribute) {
+          var t = String(root.getAttribute('data-sectok') || '').trim();
+          if (t) return t;
+        }
+      } catch (e) {}
+
+      // Fall back to DokuWiki's global JSINFO.
       try {
         if (window.JSINFO && window.JSINFO.sectok) return String(window.JSINFO.sectok);
       } catch (e) {}
+
+      // Last resort: find any security token input on the page.
+      try {
+        var inp = document.querySelector('input[name="sectok"], input[name="securitytoken"]');
+        if (inp && inp.value) return String(inp.value);
+      } catch (e2) {}
+
       return '';
     }
 
@@ -333,7 +349,7 @@
       params.set('pad', pad);
       params.set('id', pageId);
       params.set('text', text || '');
-      params.set('sectok', getSectok());
+      params.set('sectok', getSectok(root));
 
       return window.fetch(endpoint, {
         method: 'POST',
diff --git a/syntax/scratchpad.php b/syntax/scratchpad.php
index 1566728..f2499a7 100644
--- a/syntax/scratchpad.php
+++ b/syntax/scratchpad.php
@@ -114,6 +114,11 @@ class syntax_plugin_luxtools_scratchpad extends SyntaxPlugin
         /** @var Doku_Renderer_xhtml $renderer */
         $endpoint = DOKU_BASE . 'lib/plugins/luxtools/scratchpad.php';
 
+        $sectok = '';
+        if (function_exists('getSecurityToken')) {
+            $sectok = (string)getSecurityToken();
+        }
+
         global $ID;
         $pageId = (string)$ID;
         $canEdit = function_exists('auth_quickaclcheck') ? (auth_quickaclcheck($pageId) >= AUTH_EDIT) : false;
@@ -123,6 +128,7 @@ class syntax_plugin_luxtools_scratchpad extends SyntaxPlugin
             . ' data-endpoint="' . hsc($endpoint) . '"'
             . ' data-pad="' . hsc($rawPad) . '"'
             . ' data-pageid="' . hsc($pageId) . '"'
+            . ' data-sectok="' . hsc($sectok) . '"'
             . '>';
 
         $renderer->doc .= '<div class="luxtools-scratchpad-bar">';