OpenText Documentum Content Server allows superuser access via sys_obj_save or save of a crafted object, followed by an unauthorized "UPDATE dm_dbo.dm_user_s SET user_privileges=16" command, aka an "RPC save-commands" attack. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-4532.
https://gist.github.com/andreybpanfilov/e0e60ae9d525a34cca04eb4c89a21e04
https://gist.github.com/andreybpanfilov/d8792484e13971982c0719ae59ab8c7c