MySQL Improper Link Resolution Before File Access (Link Following) Vulnerability - CVE-2008-7247
sql/sql_table.cc in MySQL 5.0.x through 5.0.88 5.1.x through 5.1.41 and 6.0 before 6.0.9-alpha when the data home directory contains a symlink to a different filesystem allows remote authenticated users to bypass intended access restrictions by calling CREATE TABLE with a (1) DATA DIRECTORY or (2) INDEX DIRECTORY argument referring to a subdirectory that requires following this symlink.