

Line 196: In SQL strings, Use
db_query() placeholders in place of variables. This is a protential source of SQL injection attacks when the variable can come from user data. (
Drupal Docs)
$pid = db_result(db_query("SELECT pid FROM {url_alias} WHERE src = '%s'", "user/$account->uid"));Explanation: Use %s and %d variable substitution. When inserting an array of values use $placeholders = implode(',', array_fill(0, count($args), "'%s'"));