Cyber Attacks are reportedly being conducted world-wide on a daily basis targeting individuals, corporations and countries alike. The motive and reasoning behind these attacks are normally categorized as monetary gain, politically motivated or just for kidding and enhance credibility amongst peer groups. During the last few years, the Web has evolved into an integral part of our daily lives. Unfortunately, as our dependency on the Web increases, so does the interest of attackers in exploiting security vulnerabilities in Web applications. In the context of Bangladesh the increasing rate of Web attacks is alarming. Last few years country has faced lots of major Web incidents. The Website of RAB, Prime minister's office, Bangladesh police, education ministry etc are few of the examples. Government of Bangladesh is taking few initiatives to enhance the interaction between government and citizens through the various Web applications. So it is necessary for government to ensure strong security of the Web applications to establish trust with the citizens. In this book few common Web attacks techniques and their mitigation process will be addressed.