diff --git a/taskmanager/routes.py b/taskmanager/routes.py
index e8aa80f..8e882b3 100644
--- a/taskmanager/routes.py
+++ b/taskmanager/routes.py
@@ -29,7 +29,7 @@ def addtask():
         username = request.form['username']
         # Input sanitation
         # Task name
-        if not taskname.isprintable():
+        if not taskname.printable() or ("<" in taskname and ">" in taskname):
             return render_template('pages/response.html', response = "Task name has to be made only of letters or numbers.")
         if len(taskname) < 1 or len(taskname) > 40:
             return render_template('pages/response.html', response = "Task name lenght invalid, only smaller then 40 charachters allowed")
@@ -47,7 +47,7 @@ def addtask():
  
         # Task descripton
         if taskdesc != '':
-            if not taskdesc.isprintable():
+            if not taskdesc.isprintable() or ("<" in taskdesc and ">" in taskdesc):
                 return render_template('pages/response.html', response = "Task description has to be made of printable characters.")
             if len(taskdesc) > 2000:
                 return render_template('pages/response.html', response = "Task description lenght invalid, only smaller then 2000 charachters allowed")
@@ -76,7 +76,7 @@ def register():
 
         # Contact
         if contact != '':
-            if not contact.isprintable():
+            if not contact.isprintable() or ("<" in contact and ">" in contact):
                 return render_template('pages/response.html', response = "Contact information has to be made of printable characters.")
             if len(contact) > 100:
                 return render_template('pages/response.html', response = "Contact lenght invalid, only smaller then 100 charachters allowed")