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Stay updated on JavaScript security concerns – from vulnerabilities to best practices, keep your web applications safe with our info security tag.

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JavaScript is a dynamic programming language commonly used to create interactive effects within web browsers. In the context of information security, JavaScript comes into play in various ways. Primarily, it can be both a tool for developers to enhance user experience and a vector for cyber attacks such as Cross-Site Scripting (XSS), where attackers inject malicious scripts into trusted websites.

JavaScript security concerns also include issues such as code injection, event handling, and document object model (DOM) manipulation, which can potentially expose user data or compromise the integrity of web applications. To mitigate these risks, security professionals must rigorously implement best practices such as input validation, output encoding, and the use of content security policies (CSP). Understanding JavaScript security is crucial for protecting web applications from vulnerabilities and ensuring safe user interactions.

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Latest Mini Shai-Hulud Worm Steals Credentials, Includes Wiper, Now Open SourceA new Shai-Hulud variant has infected multiple npm repositories and jumped to other widely used JavaScript and Python packages. Designed to rapidly propagate, the worm steals over 100 different types of credentials and can wipe systems, including if developers try to delete it.

Lightweight LLM-Driven Process Alerted Elastic's Security Team, Says James SpiteriElastic Security Labs quickly spotted the unfolding supply-chain attack that backdoored the popular JavaScript library Axios, thanks to a lightweight, AI-driven tool a researcher created to assess if repository changes looked malicious. Elastic's James Spiteri says further use cases abound.

Two weeks ago, a suspected North Korean threat actor slipped malicious code into a package within Axios, a widely used JavaScript library. The immediate concern was the blast radius: roughly 100 million weekly downloads spanning enterprises, startups, and government systems. But beyond the sheer scale, the attack’s speed was just as worrisome – a stark […] The post Why the Axios attack proves AI is mandatory for supply chain security appeared first on CyberScoop.

Cybersecurity researchers have discovered a new campaign in which a cluster of 108 Google Chrome extensions has been found to communicate with the same command-and-control (C2) infrastructure with the goal of collecting user data and enabling browser-level abuse by injecting ads and arbitrary JavaScript code into every web page visited

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