The ChatGPT system through 2025-03-30 performs inline rendering of SVG documents (instead of, for example, rendering them as text inside a code block), which enables HTML injection within most modern graphical web browsers.
The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.