Escape HTML following OWASP
Escape the following characters with HTML entity encoding to prevent switching into any execution context, such as script, style, or event handlers. Using hex entities is recommended in the spec. In addition to the 5 characters significant in XML (&, <, >, ", '), the forward slash is included as it helps to end an HTML entity.
& --> & < --> < > --> > " --> " ' --> ' ' is not recommended / --> / forward slash is included as it helps end an HTML entity