Additionnal information...

The subscription submission form "wpf_sbs_form" contains a hidden field "wpforo[userid]" with  value = 1 (this is ADMIN). It should be 7 for user "maxgarin" (see JPG test with another user). This explains why ADMIN is getting the user subscription.

Now why is the user ID getting lost when displaying page : /participant/{user}/subscriptions and falls back to 1 ?

The Wordpress login cookies are correct :
- domain : federation-francaise-de-geobiologie.org
- name : wordpress_logged_in_7e3863606bc70e6f2e98232e1eba9c04
- value : maxgarin%7C1671300294%7CQaO5vbcmAIgWltPeSgDYThJUY6iwg04itakB1GPHZTK%7C8d5d9b71952dbc99616393cf0474c6ee605ef6dd273475363f59a9f33985dea6

any idea ?

OK, I found the problem and patched

wpforo/modules/subscriptions/classes/Template.php

Same behaviour on PHP 7.4 and PHP 8.1 with wpForo 2.1.1 and Wordpress 6.1.1

On line 32 in Template.php => $userid is assigned to 0

public function manager_form( $userid = 0 ) {

In my case however $userid is an ARRAY() with the following values being connected as "maxgarin" and the default value 0 is not taken.

userid[0] = Array
val[subid] = 93
val[itemid] = 8
val[type] = forum-topic
val[confirmkey] = 1d989ced9d29275b5185ea66f171ac7e
val[userid] = 7
val[active] = 1
val[user_name] =
val[user_email] =

On line 43 we have

$userid = intval( $userid );

But intval( array() ) returns 1 if not empty => which is the ADMIN userid in my case

I patched this line and changed it to

$userid = (is_array($userid)) ? 0 : intval( $userid );

And the userid is retrieved correctly and is 7 (in this example) and this solves the problem.

Does this makes sense to you ? Will you include the patch in the next wpForo release ?

thank you