A cross-site scripting (XSS) vulnerability in the web conferencing component of Mitel MiCollab AWV before 8.1.2.2 could allow an unauthenticated attacker to conduct a reflected cross-site scripting (XSS) attack due to insufficient validation in the join meeting interface. A successful exploit could allow an attacker to execute arbitrary scripts.
https://www.mitel.com/support/security-advisories/mitel-product-security-advisory-19-0007