Mail.ru: "😂" + Unauthenticated Stored XSS in API at https://api.my.games/comments/v1/comments/update/

Crossite scripting in community.my.games via post comments due to incomplete fix for 848732 I have been working on this issue for 2 hours and over 300 fails. Finally, I could exploit with a very exotic XSS payload. Payload with an emoji a little trick: %F0%9F%98%82!--😂//=...