Permissions, Privileges, and Access Controls
listing.php in WebSVN 2.0 and possibly 1.7 beta, when using an SVN authz file, allows remote authenticated users to read changelogs or diffs for restricted projects via a modified repname parameter.
CWE-264 - Permissions Privileges and Access Controls
CWE 264 (permissions, privileges, and access controls) is not a weakness in and of itself, rather it is a category of weaknesses related to the management of permissions, privileges, and other security features used to perform access control. If not addressed, the weaknesses in this category allow attackers to gain privileges for an unintended sphere of control, access sensitive information, and execute arbitrary commands.