From 3002ed9e93ea39b7c341b0b3a24f0d4f654ef062 Mon Sep 17 00:00:00 2001
From: Igor Scheller <igor.scheller@igorshp.de>
Date: Tue, 29 Aug 2017 22:22:53 +0200
Subject: Security: Only allow angels with admin_news_html privilege to use
 HTML

---
 includes/pages/admin_news.php  | 11 ++++++++---
 includes/pages/admin_user.php  |  2 +-
 includes/pages/guest_login.php |  2 +-
 includes/pages/user_news.php   | 12 +++++++++---
 4 files changed, 19 insertions(+), 8 deletions(-)

(limited to 'includes/pages')

diff --git a/includes/pages/admin_news.php b/includes/pages/admin_news.php
index 64a54f4b..bc78a6b1 100644
--- a/includes/pages/admin_news.php
+++ b/includes/pages/admin_news.php
@@ -7,7 +7,7 @@ use Engelsystem\Database\DB;
  */
 function admin_news()
 {
-    global $user;
+    global $user, $privileges;
     $request = request();
 
     if (!$request->has('action')) {
@@ -51,6 +51,11 @@ function admin_news()
             break;
 
         case 'save':
+            $text = $request->postData('eText');
+            if (!in_array('admin_news_html', $privileges)) {
+                $text = strip_tags($text);
+            }
+
             DB::update('
                 UPDATE `News` SET
                     `Datum`=?,
@@ -62,8 +67,8 @@ function admin_news()
                 ',
                 [
                     time(),
-                    $request->postData('eBetreff'),
-                    $request->postData('eText'),
+                    strip_tags($request->postData('eBetreff')),
+                    $text,
                     $user['UID'],
                     $request->has('eTreffen') ? 1 : 0,
                     $news_id
diff --git a/includes/pages/admin_user.php b/includes/pages/admin_user.php
index aea68f52..ca814b2e 100644
--- a/includes/pages/admin_user.php
+++ b/includes/pages/admin_user.php
@@ -272,7 +272,7 @@ function admin_user()
                       WHERE `UID` = ?
                       LIMIT 1';
                 DB::update($sql, [
-                    $request->postData('eNick'),
+                    User_validate_Nick($request->postData('eNick')),
                     $request->postData('eName'),
                     $request->postData('eVorname'),
                     $request->postData('eTelefon'),
diff --git a/includes/pages/guest_login.php b/includes/pages/guest_login.php
index 3966b55c..9c706cfc 100644
--- a/includes/pages/guest_login.php
+++ b/includes/pages/guest_login.php
@@ -233,7 +233,7 @@ function guest_register()
 
             // Assign user-group and set password
             $user_id = DB::getPdo()->lastInsertId();
-            DB::insert('INSERT INTO `UserGroups` (`uid`, `group_id`) VALUES (?, -2)', [$user_id]);
+            DB::insert('INSERT INTO `UserGroups` (`uid`, `group_id`) VALUES (?, -20)', [$user_id]);
             set_password($user_id, $request->postData('password'));
 
             // Assign angel-types
diff --git a/includes/pages/user_news.php b/includes/pages/user_news.php
index bdbb0645..0e38e619 100644
--- a/includes/pages/user_news.php
+++ b/includes/pages/user_news.php
@@ -155,7 +155,7 @@ function user_news_comments()
             $user_source = User($comment['UID']);
 
             $html .= '<div class="panel panel-default">';
-            $html .= '<div class="panel-body">' . nl2br($comment['Text']) . '</div>';
+            $html .= '<div class="panel-body">' . nl2br(htmlspecialchars($comment['Text'])) . '</div>';
             $html .= '<div class="panel-footer text-muted">';
             $html .= '<span class="glyphicon glyphicon-time"></span> ' . $comment['Datum'] . '&emsp;';
             $html .= User_Nick_render($user_source);
@@ -191,14 +191,20 @@ function user_news()
         if (!$request->has('treffen')) {
             $isMeeting = 0;
         }
+
+        $text = $request->postData('text');
+        if (!in_array('admin_news_html', $privileges)) {
+            $text = strip_tags($text);
+        }
+
         DB::insert('
             INSERT INTO `News` (`Datum`, `Betreff`, `Text`, `UID`, `Treffen`)
             VALUES (?, ?, ?, ?, ?)
             ',
             [
                 time(),
-                $request->postData('betreff'),
-                $request->postData('text'),
+                strip_tags($request->postData('betreff')),
+                $text,
                 $user['UID'],
                 $isMeeting,
             ]
-- 
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