Vue

Single-page apps make XSS easier to hide. You load one shell, fetch data later, stitch UI together in the browser, and somewhere along the way somebody says, “It’s fine, the framework escapes it.” Sometimes that’s true. Sometimes it’s very, very false. I’ve seen teams assume that moving from server-rendered templates to React or Vue magically solves XSS. It doesn’t. SPAs change where the bug happens, not whether it can happen. ...

v-html is one of those Vue features that feels convenient right up until it becomes a security incident. If you render untrusted HTML with v-html, you are bypassing Vue’s normal escaping protections and handing the browser raw markup. That means any unsafe HTML that survives into that string can execute script, steal session data, or manipulate the page in ways you did not expect. For a developer audience, the rule is simple: ...