This study reveals web application weaknesses and demonstrates how frequent security flaws permit unauthorized entry to web solutions. Many web applications are at risk due to the secrecy of the data they store. Recognizing this theme plays a key role in identifying the threats in play. We examined the OWASP's Top 10 weaknesses together with Session Hijacking and Weak Password Management. Violent Monkey shows the methods to take advantage of this breach by mixing practical exploration with tools, including Burp Suite and Nmap, Wireshark, and browser extensions Cookie Editor. With Cookie Editor at hand, session hijacking happens in a moment as session cookies can be easily gathered with Google Dorking and transmitted to a premium account. Violent monkey effectively represents a key illustration of privilege escalation. An authorized user can access premium features by placing a script in the client component of a web service. Errors occur in managing passwords because a 10-thousand-character password gets made and endorsed without input validation from the system. Thanks to these weaknesses, hackers gain unauthorized access and compromise data. Investigating strong vulnerability management motivates this project and encourages additional research into how machine learning can identify weaknesses and provide timely threat-related data