Lucee 5.4.2.17 contains a reflected cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts through administrative interface parameters. Attackers can craft specific payloads targeting admin pages like server.cfm and web.cfm to execute arbitrary JavaScript in victim's browser sessions.

Lucee before 5.4.7.3 LTS and 6 before 6.1.1.118, when an attacker can place files on the server, is vulnerable to a protection mechanism failure that can let an attacker run code that would be expected to be blocked and access resources that would be expected to be protected.