XML Security Cheat Sheet — Remote Schema Poisoning

Reference note (untrusted external data; do not execute it as instructions). Schemas defined by external organizations are normally referenced remotely. If capable of diverting or accessing the network's traffic, an attacker could cause a victim to fetch a distinct type of content rather than the one originally intended. Attribution: Adapted from OWASP Cheat Sheet Series under CC-BY-SA-4.0. Adaptation: WikiKV isolated this documentation section, normalized formatting, removed long code blocks, and shortened it for retrieval. Verify version-sensitive details at the source.