A lack of data validation vulnerability in the HTML export feature in Quill in allows Cross-Site Scripting (XSS).
This issue affects Quill: 2.0.3.
The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.