MySQL Community Server 5.0.x before 5.0.51, Enterprise Server 5.0.x before 5.0.52, Server 5.1.x before 5.1.23, and Server 6.0.x before 6.0.4, when a table relies on symlinks created through explicit DATA DIRECTORY and INDEX DIRECTORY options, allows remote authenticated users to overwrite system table information and gain privileges via a RENAME TABLE statement that changes the symlink to point to an existing file.

MySQL Community Server before 5.0.45 allows remote authenticated users to gain update privileges for a table in another database via a view that refers to this external table.

MySQL Community Server before 5.0.45 does not require privileges such as SELECT for the source table in a CREATE TABLE LIKE statement, which allows remote authenticated users to obtain sensitive information such as the table structure.