Fixing The CSRF token could not be verified

"The CSRF token could not be verified", if you get this message while using YII Framework. the issue can happen in

1.You are not using CHtml Form widget
2.You are not using CActiveFormWidget
3.You are using cusom ajax handlers

If you are using CHtml Form widget or CActiveForm widget the Yii Framework automatically validate CSRF token, if we using custom form or custom jquery ajax methods we should pass YII_CSRF_TOKEN to POST request, this may solve the above issue

$csrfToken = Yii::app()->request->csrfToken; // 

will return the csrf token associated with the context, you can now use that csr token to pass in jquery ajax functions

to check csrfvalidation enabled in application use the following method to get status

if(Yii::app()->request->enableCsrfValidation) 

Getting CSRF Token from javascript

YII_CSRF_TOKEN=$('input[name="YII_CSRF_TOKEN"]').val();