Possible CSS vulnerability in search.php

I think search.php of geeklog-1.3.x has
possible cross site scripting vulnerability. For example, let put this string as search keyword.

<script>alert(self.location)</script>

This gives alert window when JavaScript is enabled.
Because any HTML tags are transparently displayed in a \"No matchs\" screen, and search.php accept GET method, this can be easily exploitable with manner of ordinary cross site scripting attacks.
<BR>
This simple patch for search.php can prevent this type of attack.

--- search.php Fri Apr 5 01:21:15 2002
+++ search.php.org Mon Apr 8 03:38:07 2002
@@ -264,7 +264,7 @@
$retval .= $searchresults->parse(\'output\',\'searchresults\');
} else {
$retval .= COM_startBlock($LANG09[13])
- . $LANG09[14].\' <b>\'.htmlentities($query).\'</b> \'.$LANG09[15]
+ . $LANG09[14].\' <b>\'.$query.\'</b> \'.$LANG09[15]
. COM_endBlock();
}