sukram

Oh, forgott to tell you that u have to change the lines before the replace stuff.

setcookie(USER_COOKIE, $username, $expire, $sitecookiepath, COOKIE_DOMAIN);
setcookie(PASS_COOKIE, $password, $expire, $sitecookiepath, COOKIE_DOMAIN);

($cookiepath to $sitecookiepath)

My Solution

Delete all Cookies in your Browser

Open: \wp-includes\pluggable.php
Replace:`
if ( $cookiepath != $sitecookiepath ) {
setcookie(USER_COOKIE, $username, $expire, $sitecookiepath, COOKIE_DOMAIN);
setcookie(PASS_COOKIE, $password, $expire, $sitecookiepath, COOKIE_DOMAIN);
}`

With: `/*
if ( $cookiepath != $sitecookiepath ) {
setcookie(USER_COOKIE, $username, $expire, $sitecookiepath, COOKIE_DOMAIN);
setcookie(PASS_COOKIE, $password, $expire, $sitecookiepath, COOKIE_DOMAIN);
}
*/`

Login again and try to logout.
Fixed the Problem for me (Subdomain)

It’s definitly a cookie related bug.
Wordpress sets two cookies in the pluggable.php with the following code:
setcookie(USER_COOKIE, ‘ ‘, time() – 31536000, COOKIEPATH, COOKIE_DOMAIN);
setcookie(PASS_COOKIE, ‘ ‘, time() – 31536000, COOKIEPATH, COOKIE_DOMAIN);
setcookie(USER_COOKIE, ‘ ‘, time() – 31536000, SITECOOKIEPATH, COOKIE_DOMAIN);
setcookie(PASS_COOKIE, ‘ ‘, time() – 31536000, SITECOOKIEPATH, COOKIE_DOMAIN);

As you can see there are two paths which could be the problem.

I have this Problem with a Subdomain. A ticket about this Problem can be found here (opened two years ago and last modified 2 days ago)