diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index 697e1613..bb9005a1 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -1,10 +1,11 @@
 Changelog
 =========
 
-1.10.7 (Unreleased)
------------------------
+1.10.7 (September 19, 2024)
+----------------------------
 - Enh #342: JS Dependency Updates
 - Enh #344: Replace theme variables with CSS variables
+- Fix #346: Disable automatic iframe attribute "sandbox" on TinyMCE editor
 - Fix #345: Fix module ID
 
 1.10.6 (August 6, 2024)
diff --git a/widgets/TinyMce.php b/widgets/TinyMce.php
index 5cdf270a..d3880abb 100644
--- a/widgets/TinyMce.php
+++ b/widgets/TinyMce.php
@@ -47,6 +47,7 @@ private function initDefaults()
             'toolbar' => 'undo redo | wrapper blocks | bold italic | alignleft aligncenter alignright alignjustify | bullist numlist' . $humhubTriggerToolbar . ' | removeformat | code',
             'content_style' => '.img-responsive {display:block;max-width:100%;height:auto}',
             'valid_elements' => '*[*]',
+            'sandbox_iframes' => false,
             'relative_urls' => false,
             'remove_script_host' => true,
             'external_plugins' => $external_plugins,