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Coding Tips to Sidestep JavaScript Vulnerabilities

September 7, 2023

The Internet was all about gray backgrounds and dull text boxes in the ’90s. But JavaScript changed that, allowing us to enjoy dynamic text, interactive websites, and clickable elements without sacrificing performance. JavaScript is one of the most commonly used programming languages today.

However, attackers are exploiting vulnerabilities in JavaScript applications with malicious scripts and session hijacking attacks to create a wide range of manipulations, such as session redirects, sensitive data harvesting (compliance breaches), and information tampering. Many ransomware variants, such as Magniber, Vjw0rm, and GootLoader, exploit loopholes in JavaScript code. The MageCart group compromised British Airways, using just 22 lines of code to manipulate the Modernizr library.

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