An issue was discovered in CMS Made Simple 2.2.8. In the administrator page admin/changegroupperm.php, it is possible to send a crafted value in the sel_groups parameter that leads to authenticated object injection.
Severity
CVSS 3.1
7.2 high
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS
1.2% chance of exploitation in the next 30 days; higher than 68% of CVEs (scores of 2026-10-31)