JavaScript Security in 2025: Why React Isn’t Your Savior Anymore
JavaScript conquered the web, but with great power comes greater security threats. In 2025, attackers are exploiting everything from AI prompt injections to supply chain compromises. React, Vue, and Angular developers must adapt with layered defenses. Remember: Never trust client-side code, always validate server-side, and encode based on context. Stay vigilant!

Hot Take:
Just when you thought JavaScript was safe, attackers have leveled up like a villain in a video game, exploiting new vulnerabilities faster than you can say “XSS.” In 2025, the only thing more dangerous than unsanitized input is assuming your web app is invincible. Time to suit up, developers, because the battle for secure code is more intense than ever!
Key Points:
- JavaScript frameworks like React, Vue, and Angular are being outsmarted by modern attackers using AI prompt injections and supply chain compromises.
- The Polyfill.io attack in 2024 compromised over 100,000 websites, marking the year’s largest JavaScript injection incident.
- 2024 saw a 30% increase in reported CVEs, highlighting the growing threat landscape for JavaScript developers.
- The financial industry is particularly vulnerable, with advanced JavaScript web injections targeting over 40 banks globally.
- Understanding WebAssembly and AI prompt injection threats is crucial for modern web security.
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