Users looking for update instructions, read this. The line number above may be incorrect and doesn't really show the fix, so look for a function in uc_attribute.module named _uc_cart_product_get_options() and change the following:
<?php
// From:
'name' => $oid,
// To:
'name' => check_plain($oid),
?>(Lyle, please correct this if I missed anything. 
)
Joined: 08/07/2007