Incorrect access control in Mirotalk before commit 9de226 allows attackers to arbitrarily change usernames via sending a crafted roomAction request to the server.
https://github.com/miroslavpejic85/mirotalksfu/blob/main/SECURITY.md
https://github.com/miroslavpejic85/mirotalk
https://github.com/miroslavpejic85
https://aware7.com/de/blog/schwachstellen-in-videokonferenzsystemen/