Decoding XML Vulnerabilities: From Basics to Exploits in XML External Entities

Vulnerabilities within XML parsing can act as the exploitation point for many systems. Combined, they can lead to severe consequences, including data leaks, SSRF, service disruptions, and even remote command or code execution.

Introduction to XML

This post aims to explain the syntax and concepts of XML entities, which could be used as potential cyber attack vectors if not understood completely.

XML combines markup and content, using tags as its primary form of markup to structure and validate data …

ctf owasp security web security xxe