Case Studies

Real-world security outcomes from focused engineering engagements. Detailed reports on vulnerabilities, exploitation scenarios, and remediation strategies.

Case Study: Preventing Large-Scale Financial Fraud in a Payments Platform

--- Cyvocate identified, verified, and reported a critical financial logic vulnerability in a fast-growing fintech application. The platform—built with a Node.js/Express API gateway, a PostgreSQL database, and integrate…

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Case Study: Web3 Payment Spoofing Vulnerability (Solidity / React)

--- Cyvocate uncovered a critical vulnerability in a decentralized application’s (dApp) Web3-integrated payment verification pipeline. The platform—built using a React frontend, Ethers.js client library, MetaMask/Wallet…

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Session Hijacking via Chained Vulnerabilities (React / Next.js, AWS WAF, Spring Boot)

--- Cyvocate identified and exploited a critical, high-impact security vulnerability chain in a client's core portal. The web platform featured a modern frontend built on the Next.js App Router (React), deployed on AWS …

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Case Study: Improper Authorization via Response Manipulation (React Router / AWS)

--- Cyvocate identified and reported a critical authorization bypass vulnerability in an enterprise portal's administration module. The web platform was structured around a React Router frontend communicating through an…

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Case Study: Client-Side Trust of Sensitive API Response (React / MongoDB)

--- Cyvocate identified a fundamental authorization failure in a leading learning management and professional assessment system. The web application featured a modern React frontend utilizing Redux Toolkit for state man…

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