CVE 2007-2448
Subversion 1.4.3 and earlier does not properly implement the "partial access" privilege for users who have access to changed paths but not copied paths, which allows remote authenticated users to obtain sensitive information (revision properties) via svn (1) propget, (2) proplist, or (3) propedit.
See the 
CVE page on Mitre.org
for more details.
