diff --git a/src/LogViewer.php b/src/LogViewer.php
index e6296e3..53d256f 100644
--- a/src/LogViewer.php
+++ b/src/LogViewer.php
@@ -74,11 +74,16 @@ class LogViewer
     public function __construct($basePath, $dir, $file = null)
     {
         $this->basePath = rtrim($basePath, '/');
-        $this->currentDirectory = rtrim($dir, '/');
-        $this->file = $file;
+        $this->currentDirectory = $this->formatPath(rtrim($dir, '/'));
+        $this->file = $this->formatPath($file);
         $this->files = new Filesystem();
     }
 
+    protected function formatPath($path)
+    {
+        return str_replace(['../'], '', $path);
+    }
+
     /**
      * Get file path by giving log file name.
      *
@@ -103,7 +108,7 @@ class LogViewer
 
     public function setFilename($value)
     {
-        $this->filename = $value;
+        $this->filename = $this->formatPath($value);
     }
 
     /**