Devolutions Server before 2021.1.18, and LTS before 2020.3.20, allows attackers to intercept private keys via a man-in-the-middle attack against the connections/partial endpoint (which accepts cleartext).
An overly permissive CORS policy in Devolutions Server before 2021.1 and Devolutions Server LTS before 2020.3.18 allows a remote attacker to leak cross-origin data via a crafted HTML page.
An SQL Injection issue in Devolutions Server before 2021.1 and Devolutions Server LTS before 2020.3.18 allows an administrative user to execute arbitrary SQL commands via a username in api/security/userinfo/delete.