CVE-2009-0943
Help Viewer in Apple Mac OS X 10.4.11 and 10.5 before 10.5.7 does not verify that HTML pathnames are located in a registered help book, which allows remote attackers to execute arbitrary code via a help: URL that triggers invocation of AppleScript files.
Date published : 2009-05-13
http://lists.apple.com/archives/security-announce/2009/May/msg00002.html