## https://sploitus.com/exploit?id=WPEX-ID:5B1AACD1-3F75-4A6F-8146-CBB98A713724
Add a "Scriptless Social Sharing" Gutenberg block to a post and put the following payload in the "Additional CSS class(es)" advanced block option:
" onmouseover="alert(/XSS/)" style="background:red;"
The XSS will be triggered when previewing/viewing the post and moving the mouse over the red block