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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Background for this topic.
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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Threat actors are exploiting a recently disclosed critical security flaw in Ghost CMS to inject malicious JavaScript code with an aim to fuel ClickFix attacks
A large-scale campaign is exploiting a critical SQL injection vulnerability (CVE-2026-26980) in Ghost CMS to inject malicious JavaScript code that triggers ClickFix attack flows. [...]