JavaScript is a scripting language used in web pages and applications, where flaws in code or dependencies can enable attacks and data theft.
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Background for this topic.
JavaScript is a programming language used to add behavior to web pages and to build applications that run outside the browser, including server-side services and tooling. In browsers, scripts can read and modify a page’s content and interact with available web APIs, subject to the browser’s security boundaries.
Its main security risks include cross-site scripting (XSS), in which attacker-controlled input is executed as page code, and DOM-based flaws caused by unsafe handling of data in client-side code. Third-party scripts and package dependencies also expand the code supply chain and may expose user data or introduce vulnerable behavior. Practical controls include context-aware output encoding, avoiding unsafe DOM sinks, restrictive Content-Security-Policy rules, and reviewing, pinning, and monitoring dependencies for vulnerabilities.
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Google has released security updates to address 74 vulnerabilities, including one that has come under active exploitation in the wild
Google fixed a new Chrome zero-day, tracked as CVE-2026-11645, in the V8 JavaScript engine, which is already being exploited in the wild. Google released emergency updates to address a new Chrome zero-day vulnerability, tracked as CVE-2026-11645, that has been exploited in the wild. This flaw is the fifth Chrome zero-day that is being exploited in […]
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. [...]
Security community needs to rally and share more info faster, one researcher says Amid new reports of attackers pummeling a maximum security hole (CVE-2025-55182) in the React JavaScript library, Cloudflare's technology chief said his company took down its own network, forcing a widespread outage early Friday, to patch React2Shell.…
Google on Wednesday released security updates for the Chrome web browser to address four vulnerabilities, including one that it said has been exploited in the wild
Google has revealed that a security flaw that was patched as part of a software update rolled out last week to its Chrome browser has come under active exploitation in the wild
Google on Monday shipped emergency fixes to address a new zero-day flaw in the Chrome web browser that has come under active exploitation in the wild