WRITEUP #3729XSS via postMessage in chat.mozilla.orgXSSpostMessageby@k33r0k(Guilherme Keerok)Bounty500ProgramMozillaPublishedMay 20, 2021Added to HackDexSep 15, 2022Read Full Writeuphttps://keerok.github.io/2021/05/09/XSS-via-postMessage-in-chat-mozilla-org-CVE-2021-21320/