Hi Ramakrishnan S,
Thanks for raising this topic.
We're currently getting a lot of questions about this exploit and whether it affects Totara.
I've started a thread in the General discussions forum to share about this exploit and on which we can discuss and answer any questions.
https://totara.community/mod/forum/discuss.php?d=12082
Have a read of the first post and if you have any questions please ask them there.
Kind regards
Sam Hemelryk