Use of Insufficiently Random Values in penggle:kaptcha

text/impl/DefaultTextCreator.java, text/impl/ChineseTextProducer.java, and text/impl/FiveLetterFirstNameTextCreator.java in kaptcha 2.3.2 use the Random rather than SecureRandom function for generating CAPTCHA values, which makes it easier for remote attackers to bypass intended access restrictio...