diff --git a/Changelog.md b/Changelog.md
index 90e34fc..20e148f 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -2,6 +2,10 @@
 This file holds the changelog for Pepperminty Wiki. This is the master list of things that have changed (second only to the commit history!) - though the information for any particular release can also be found in the description of it's page for every release made on GitHub too.
 
 
+## v0.21.1-hotfix1
+ - [security] Fix security issue in the debug action
+
+
 ## v0.21
 
 ### Fixed
@@ -417,7 +421,7 @@ _(No changes since v0.15-beta2)_
  - Fixed handling of pages and tags with single quotes in the name
  - Fixed weirdness on some pages rendered by the Pepperminty Wiki core
  - Fixed a few minor usability issues on the upload file page.
- - Removed some extra space at the bottom of some pages.
+ - Removed some extra  at the bottom of some pages.
  - The `raw` action now sends a 404 if the request page doesn't exist on the wiki.
 
 ### Changed
diff --git a/modules/page-debug-info.php b/modules/page-debug-info.php
index 29a940c..31083e0 100644
--- a/modules/page-debug-info.php
+++ b/modules/page-debug-info.php
@@ -1,7 +1,7 @@
 <?php
 register_module([
 	"name" => "Debug Information",
-	"version" => "0.3",
+	"version" => "0.4",
 	"author" => "Starbeamrainbowlabs",
 	"description" => "Adds a debug action for administrator use only that collects a load of useful information to make reporting bugs easier.",
 	"id" => "page-debug-info",
@@ -59,7 +59,7 @@ register_module([
 			$settings_export = explode("\n", var_export($settings, true));
 			foreach ($settings_export as &$row)
 			{
-				if(preg_match("/(sitesecret|email)/i", $row)) $row = "********* secret *********"; 
+				if(preg_match("/'(secret|sitesecret|email(?:Address)?|password)'/i", $row)) $row = "********* secret *********"; 
 			}
 			echo(implode("\n", $settings_export));
 			echo("\n-----\n");