Estudo e Análise de Vulnerabilidades Web

Web security is important to provide protection to clients and services in Web. Several Web vulnerabilities are exploited every day and the attacks have  increased due to new tools and Web applications. In this work is carried out an analysis of Web vulnerabilities in different kinds of applications. A set ofheterogeneous and brazilian Web sites was selected and analysed by open source tools. Consequently, the main forms of attacks used in Web applications have been investigated. Our results show how Web vulnerabilities can be exploitedeasily. So, it is verified that websites need to improve their security urgently.