XFCE 4.16 allows attackers to execute arbitrary code because xdg-open can execute a .desktop file on an attacker-controlled FTP server.
https://www.debian.org/security/2022/dsa-5164
https://lists.debian.org/debian-lts-announce/2022/06/msg00018.html
https://gitlab.xfce.org/xfce/exo/-/commit/c71c04ff5882b2866a0d8506fb460d4ef796de9f