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El sistema que utiliza la librer\u00eda postgresql ser\u00e1 atacado cuando un atacante controle la url o las propiedades del jdbc. pgjdbc instala instancias de plugins basados en los nombres de clase proporcionados a trav\u00e9s de las propiedades de conexi\u00f3n `authenticationPluginClassName`, `sslhostnameverifier`, `socketFactory`, `sslfactory`, `sslpasswordcallback`. Sin embargo, el controlador no verifica si la clase implementa la interfaz esperada antes de instanciar la clase. Esto puede llevar a la ejecuci\u00f3n de c\u00f3digo cargado a trav\u00e9s de clases arbitrarias. Se aconseja a los usuarios que utilicen plugins que se actualicen. 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