Mitigating XSS in Vue: The Dangers of v-html and Component Injection

Vue provides built-in protection by escaping HTML content in templates, but v-html and dynamic component names bypass these safeguards.

Vue's template compiler treats {{ mustache }} tags as plain text. However, v-html renders raw HTML, making the app vulnerable to Cross-Site Scripting (XSS). From an architecture standpoint, you must implement a sanitization layer (like DOMPurify) before data reaches v-html. Similarly, when using <component :is="variable">, ensure the variable is validated against a whitelist to prevent 'Component Injection'.