phpMyAdmin before 2.11.5 accesses $_REQUEST to obtain some parameters instead of $_GET and $_POST, which allows attackers in the same domain to override certain variables and conduct SQL injection and Cross-Site Request Forgery (CSRF) attacks by using crafted cookies.
The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.