Wiki Server in Apple Mac OS X 10.5 before 10.5.3 allows remote attackers to obtain sensitive information (user names) by reading the error message produced upon access to a nonexistent blog.
Exploitability
AV:NAC:LAu:NImpact
C:PI:NA:N5/AV:N/AC:L/Au:N/C:P/I:N/A:N