Avoid direct execution of installer includes (#1488895)

3 files changed, 21 insertions, 0 deletions

diff --git a/installer/check.php b/installer/check.php
index 886200b84..14fc4f06e 100644
--- a/installer/check.php
+++ b/installer/check.php
@@ -1,3 +1,10 @@
+<?php
+
+if (!class_exists('rcube_install') || !is_object($RCI)) {
+    die("Not allowed! Please open installer/index.php instead.");
+}
+
+?>
 <form action="index.php" method="get">
 <?php
 
diff --git a/installer/config.php b/installer/config.php
index 6897ffbba..d6846edc7 100644
--- a/installer/config.php
+++ b/installer/config.php
@@ -1,3 +1,10 @@
+<?php
+
+if (!class_exists('rcube_install') || !is_object($RCI)) {
+    die("Not allowed! Please open installer/index.php instead.");
+}
+
+?>
 <form action="index.php" method="post">
 <input type="hidden" name="_step" value="2" />
 <?php
diff --git a/installer/test.php b/installer/test.php
index e266bf05f..b118924e4 100644
--- a/installer/test.php
+++ b/installer/test.php
@@ -1,3 +1,10 @@
+<?php
+
+if (!class_exists('rcube_install') || !is_object($RCI)) {
+    die("Not allowed! Please open installer/index.php instead.");
+}
+
+?>
 <form action="index.php?_step=3" method="post">
 
 <h3>Check config files</h3>