diff --git a/src/mibew/libs/init.php b/src/mibew/libs/init.php
index 5a17f01a..8561025d 100644
--- a/src/mibew/libs/init.php
+++ b/src/mibew/libs/init.php
@@ -15,6 +15,9 @@
  * limitations under the License.
  */
 
+// Prevent Mibew from access to files outside the installation
+ini_set('open_basedir', dirname(dirname(__FILE__)));
+
 // Initialize user session
 session_start();