CSRF exists in BigTree CMS 4.1.18 and 4.2.16 with the id parameter to the admin/ajax/users/delete/ page. A user can be deleted.
https://github.com/bigtreecms/BigTree-CMS/issues/275
https://github.com/bigtreecms/BigTree-CMS/files/843734/BigTree.-.Multiple.Issue.of.CSRF.that.could.Illegally.Few.Data.Changes.v02.pdf
Source: Mitre, NVD
Published: 2017-03-15
Updated: 2017-03-16
Base Score: 5.8
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:P
Severity: Medium
Base Score: 7.1
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
Severity: High