CVE-2020-25494
Xinuos (formerly SCO) Openserver v5 and v6 allows attackers to execute arbitrary commands via shell metacharacters in outputform or toclevels parameter to cgi-bin/printbook.
Date published : 2020-12-18
http://packetstormsecurity.com/files/160635/SCO-Openserver-5.0.7-Command-Injection.html