diff --git a/app.py b/app.py
index 5e020f3..07212f7 100644
--- a/app.py
+++ b/app.py
@@ -292,16 +292,18 @@ def post_change_pwd():
 @post('/delete')
 def post_delete():
     form = request.forms.getunicode
+    tools = Tools()
 
     def error(msg):
         return delete_tpl(alerts=[('error', msg, 'fadeOut')], str=i18n.str)
 
     try:
         username = newSession().get()['username']
-        if(form('username').lower() == username):
+        if(tools.input_validation(form('username')) and form('username').lower() == username):
             del_user(username)
         else:
             return(error(i18n.msg[19]))
+            
     except Error as e:
         LOG.warning("Unsuccessful attempt to delete the account: %s" % e)
         return error(str(e))
diff --git a/libs/__pycache__/flist.cpython-39.pyc b/libs/__pycache__/flist.cpython-39.pyc
index fd0bc85..d1a1008 100644
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diff --git a/libs/__pycache__/helper.cpython-39.pyc b/libs/__pycache__/helper.cpython-39.pyc
index 56f48f6..ff1546f 100644
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diff --git a/libs/__pycache__/localization.cpython-39.pyc b/libs/__pycache__/localization.cpython-39.pyc
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diff --git a/libs/__pycache__/slist.cpython-39.pyc b/libs/__pycache__/slist.cpython-39.pyc
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