Thread:Project:Support desk/Permissions error on forgotten login

We recently upgraded from Mediawiki 1.16 to 1.18.1. We didn't have any issues with the upgrade and overall everything appeared to work. However we have since discovered an issue with the functionality for a user to reset a forgotten password. If a user clicks the link that says "Forgotten your login details?" They see an error message that says:

The action you have requested is limited to users in the group: Administrators.

It sounds to me there may be a new permissions setting in 1.18, however I haven't found anything and I'm not finding much in the way of useful information doing a general web search. Anyone have any ideas?

MediaWiki 1.18.1 PHP 5.3.3 MySQL 5.1.49