Predictable Value Range from Previous Values

Overview Affected versions of this package are vulnerable to Predictable Value Range from Previous Values via the boundary value, which uses Math.random. An attacker can manipulate HTTP request boundaries by exploiting predictable values, potentially leading to HTTP parameter pollution. Remediati...

CVE-2018-18531

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...