The x-man-page: URI handler for Apple Terminal 1.4.4 in Mac OS X 10.3.9 does not cleanse terminal escape sequences, which allows remote attackers to execute arbitrary commands.
http://www.vupen.com/english/advisories/2005/0455
http://www.us-cert.gov/cas/techalerts/TA05-136A.html
http://www.securityfocus.com/bid/13480
http://www.kb.cert.org/vuls/id/356070
http://secunia.com/advisories/15227
http://lists.apple.com/archives/security-announce/2005/May/msg00001.html