Wordpress distributes the same cookies

Question

HTTP Cookies

Given:
Wordpress without mandatory registration with pre-moderation of comments.
Problem:
Since yesterday, wp began to issue the same kind of cookie to everyone:

comment_author_f5598bcb30f4c521d381770272e952eb

and now any commentator sees other people's comments that have not yet passed moderation.

Help solve the problem

Answer 1

cookies must be the same. The contents of the cookies must be different.
what is shown there incorrectly - you need to look at the topic, but most likely a sudden change in behavior is the result of an incorrect filter or hook in some plugin thread.

Answer 2

It seems that something with COOKIEHASH. You have to see why it's the same for everyone. Here is a piece of code from wp-comments-post.php:
setcookie('comment_author_' . COOKIEHASH, stripslashes($comment_author), time()+ 30000000, COOKIEPATH);
setcookie('comment_author_email_' . COOKIEHASH, stripslashes($comment_author_email), time() + 30000000, COOKIEPATH);
setcookie('comment_author_url_' . COOKIEHASH, stripslashes($comment_author_url), time() + 30000000, COOKIEPATH);