---
id: 4159
title: "What Is XSS?: An Overview"
source_domain: bishopfox.com
source_url: "https://bishopfox.com/blog/what-is-xss"
published_at: "2020-03-16T00:00:00Z"
tags: ["web-security", "xss", "owasp", "injection", "output-encoding"]
phying_url: "https://phying.com/item/4159"
lang: en
---

# What Is XSS?: An Overview

## Summary

An explainer on cross-site scripting: how XSS runs attacker code in victims' browsers, the reflected, stored, and DOM-based varieties, and why contextual output encoding is the core defense.

## Intelligence Metadata

- **Sources:** bishopfox.com
- **Published:** 2020-03-16T00:00:00Z
- **Original:** https://bishopfox.com/blog/what-is-xss
- **Phying News:** https://phying.com/item/4159