Abstract: Current organizational vulnerabilities primarily originate from web applications. Security holes in web applications have led to credit card theft and damage to the financial resources of institutions. Existing literature shows that dependability attributes are the solution for security vulnerabilities in web applications. However, efforts to measure dependability attributes remain under investigation. This study aims to measure the vulnerabilities that affect the dependability attributes by Vulnerability Assessment Tools (VATs). VATs are utilized to identify vulnerabilities in current web application systems. The assessment is performed based on six dependability attributes: Availability, reliability, confidentiality, integrity, safety and maintainability. The assessment provides methods and strategies that solve the lack of measuring dependability attributes of web applications. The assessment results will also realize the awareness of software development industries on the effect of neglecting dependability attributes in the software development process.