wordtrans 1.1pre8 and earlier in the wordtrans-web package allows remote attackers to (1) execute arbitrary code or (2) conduct cross-site scripting attacks via certain parameters (possibly "dict") to the wordtrans.php script.
http://www.securityfocus.com/bid/5674
http://www.securityfocus.com/bid/5671
http://www.iss.net/security_center/static/10063.php
http://www.iss.net/security_center/static/10059.php
http://www.guardent.com/comp_news_wordtrans-web.html#