Open Web Security Project community with a primary goal to increase web app security, created a document with recommendations to minimize risks.

According to the OWSP, there are the main vulnerabilities in web apps that can be loopholes for cybercriminals.

SQL injection

SQL is a query language that can be used for access, changing, and deleting data in databases. According to Edgescan 2020 Vulnerability Stats Report, 42% of web app vulnerabilities were caused by SQL injections. It is one of the most popular cyberattacks as it is easy enough to perform. The main danger is that a large part of the web is built on SQL.

Cross-site scripting (XSS)

Such sites as MySpace, Facebook, Barack Obama’s electoral campaign website, eBay, and even the FBI underwent XSS cyberattack. 

Cross-site scripting is a vulnerability in dynamic web pages and web apps. An attacker can implement malicious scripts on a web page to get access to a user's web browser. Thus, to become attackers' victim enough to visit a page with malicious scripts.

To prevent any problems with security implement penetration testing into the development process. It can be arduous and time-consuming. The average price of penetration testing is between $4000 to $150,000.  However, it can save your company from many problems.