Invalid security token error
 

Users in my forum are complaining they are receiving
"Your submission could not be processed because a security token was invalid".
whenever they try to login or whenever they try to download stuff (i am running DownloadsII plugin) or when they click on Today's posts.

Until sept-oct 2015, we never had this issue.

The forum is running Version 4.2.3 with a few add-ons.

I searched, applied a few fixes mentioned but they are not able to fix it.

Any idea how can i fix this? Since 2008 this site has been on a custom theme and as i said above, never had this issue.

It's been happening more regularly only in the last 30 to 45 days.

thanks.

What I suggest first is to do a search in your templates for:

And change any instances you find to:

(Make a note of all templates changed in case you need to revert).

Then, check the links in your "Navigation Manager" for instances of:

and change those to:

same issue here, users getting Invalid security token when they try to post, no templates are showing
{vb:raw userinfo.securitytoken}

same issue, was there a fix?
I have searched and not found either instance in templates

Are you using a custom style or a default style? If a custom style, you may need to update your templates to include the securitytoken in your forms.