Search results for dom based xss injection | Breaking Cybersecurity News | The Hacker News

React conquered XSS? Think again. That's the reality facing JavaScript developers in 2025, where attackers have quietly evolved their injection techniques to exploit everything from prototype pollution to AI-generated code, bypassing the very frameworks designed to keep applications secure. Full 47-page guide with framework-specific defenses (PDF, free). JavaScript conquered the web, but with that victory came new battlefields. While developers embraced React, Vue, and Angular, attackers evolved their tactics, exploiting AI prompt injection, supply chain compromises, and prototype pollution in ways traditional security measures can't catch. A Wake-up Call: The Polyfill.io Attack In June 2024, a single JavaScript injection attack compromised over 100,000 websites in the biggest JavaScript injection attack of the year. The Polyfill.io supply chain attack , where a Chinese company acquired a trusted JavaScript library and weaponized it to inject malicious code, affected major pl...

As 2025 draws to a close, security professionals face a sobering realization: the traditional playbook for web security has become dangerously obsolete. AI-powered attacks, evolving injection techniques, and supply chain compromises affecting hundreds of thousands of websites forced a fundamental rethink of defensive strategies. Here are the five threats that reshaped web security this year, and why the lessons learned will define digital protection for years to come. 1. Vibe Coding Natural language coding, " vibe coding " , transformed from novelty to production reality in 2025, with nearly 25% of Y Combinator startups using AI to build core codebases. One developer launched a multiplayer flight simulator in under three hours, eventually scaling it to 89,000 players and generating thousands in monthly revenue. The Result Code that functions perfectly yet contains exploitable flaws, bypassing traditional security tools. AI generates what you ask for, not what you forget...

Think payment iframes are secure by design? Think again. Sophisticated attackers have quietly evolved malicious overlay techniques to exploit checkout pages and steal credit card data by bypassing the very security policies designed to stop them. Download the complete iframe security guide here .  TL;DR: iframe Security Exposed Payment iframes are being actively exploited by attackers using malicious overlays to skim credit card data. These pixel-perfect fake forms bypass traditional security, as proven by a recent Stripe campaign that has already compromised dozens of merchants. This article explores: Anatomy of the 2024 Stripe skimmer attack. Why old defenses like CSP and X-Frame-Options are failing. Modern attack vectors: overlays, postMessage spoofing, and CSS exfiltration. How third-party scripts in payment iframes create new risks. How the new PCI DSS 4.0.1 rules are forcing merchants to secure the entire page. A six-step defense strategy focusing on real-time mon...

From zero-day exploits to large-scale bot attacks — the demand for a powerful, self-hosted, and user-friendly web application security solution has never been greater. SafeLine is currently the most starred open-source Web Application Firewall (WAF) on GitHub, with over 16.4K stars and a rapidly growing global user base. This walkthrough covers what SafeLine is, how it works, and why it's becoming the go-to solution over cloud-based WAFs. What is SafeLine WAF? SafeLine is a self-hosted web application firewall that acts as a reverse proxy, filtering and monitoring HTTP/HTTPS traffic to block malicious requests before they reach your backend web applications. Unlike cloud-based WAFs, SafeLine runs entirely on your own servers—giving you unmatched visibility and data sovereignty. Key Features of SafeLine WAF Comprehensive Attack Prevention SafeLine effectively blocks a wide range of common and advanced web attacks, including SQL injection(SQLi), cross-site scripting (XSS), OS co...

Google on Tuesday launched a Security testing tool "Firing Range" , which aimed at improving the efficiency of automated Web application security scanners by evaluating them with a wide range of cross-site scripting (XSS) and a few other web vulnerabilities seen in the wild. Firing Range basically provides a synthetic testing environment mostly for cross-site scripting (XSS) vulnerabilities that are seen most frequently in web apps. According to Google security engineer Claudio Criscione, 70 percent of the bugs in Google's Vulnerability Reward Program are cross-site scripting flaws . In addition to XSS vulnerabilities , the new web app scanner also scans for other types of vulnerabilities including reverse clickjacking , Flash injection , mixed content, and cross-origin resource sharing vulnerabilities. Firing Range was developed by Google with the help of security researchers at Politecnico di Milano in an effort to build a test ground for automated scanners...

Enterprise security and network appliance vendor F5 has released patches for more than  two dozen security vulnerabilities  affecting multiple versions of BIG-IP and BIG-IQ devices that could potentially allow an attacker to perform a wide range of malicious actions, including accessing arbitrary files, escalating privileges, and executing JavaScript code. Of the 29 bugs addressed, 13 are high-severity flaws, 15 are rated medium, and one is rated low in severity. Chief among them is  CVE-2021-23031  (CVSS score: 8.8), a vulnerability affecting BIG-IP Advanced Web Application Firewall and BIG-IP Application Security Manager that allows an authenticated user to perform a privilege escalation. "When this vulnerability is exploited, an authenticated attacker with access to the Configuration utility can execute arbitrary system commands, create or delete files, and/or disable services. This vulnerability may result in complete system compromise," F5 said in its advis...

The cyber world's been buzzing this week, and it's all about staying ahead of the bad guys. From sneaky software bugs to advanced hacking tricks, the risks are real, but so are the ways to protect yourself. In this recap, we'll break down what's happening, why it matters, and what you can do to stay secure. Let's turn awareness into action and keep one step ahead of the threats. ⚡ Threat of the Week Critical Ivanti Flaw Comes Under Exploitation — A newly discovered critical security vulnerability in Ivanti Connect Secure appliances has been exploited as a zero-day since mid-December 2024. The flaw (CVE-2025-0282, CVSS score: 9.0) is a stack-based buffer overflow bug that could lead to unauthenticated remote code execution. According to Google-owned Mandiant, the flaw has been exploited to deploy the SPAWN ecosystem of malware – the SPAWNANT installer, SPAWNMOLE tunneler, and the SPAWNSNAIL SSH backdoor – as well as two other previou...

Cybersecurity today moves at the pace of global politics. A single breach can ripple across supply chains, turn a software flaw into leverage, or shift who holds the upper hand. For leaders, this means defense isn't just a matter of firewalls and patches—it's about strategy. The strongest organizations aren't the ones with the most tools, but the ones that see how cyber risks connect to business, trust, and power. This week's stories highlight how technical gaps become real-world pressure points—and why security decisions now matter far beyond IT. ⚡ Threat of the Week Popular Password Managers Affected by Clickjacking — Popular password manager plugins for web browsers have been found susceptible to clickjacking security vulnerabilities that could be exploited to steal account credentials, two-factor authentication (2FA) codes, and credit card details under certain conditions. The technique has been dubbed Document Object Model (DOM)-based extension clickjacking by independent sec...