[josiespencer]

I gutted the misc.php source and created a UpdateForum.php module:

PHP Code:

if ($_REQUEST['do'] == 'updateforum')
{
    build_forum_permissions($forum['757']);
    vbflush();
    unset($forum['757'], $vbulletin->forumcache);
} 


Now my SQL query runs replacing the forum password:

PHP Code:

UPDATE forum SET PASSWORD = '<new pass>' WHERE forumid = 757; 


Then I run /forums/admincp/UpdateForum.php?do=updateforum and the password is reset!