DaybydayCRM through 2.2.1 contains a missing authorization vulnerability in ProjectsController::updateAssign() that allows any authenticated user to reassign projects without the can-assign-new-user-to-project permission. Low-privileged employees can send PATCH or POST requests to /projects/updateassign/{external_id} with a chosen user_assigned_id to redirect project ownership and notifications.
https://github.com/Bottelet/DaybydayCRM/pull/362
https://github.com/Bottelet/DaybydayCRM/issues/347
https://github.com/Bottelet/DaybydayCRM/commit/20a161e6c3e7ad60ee0430678bcbace593dfd1d8
Published: 2026-10-24
Updated: 2026-10-24
Base Score: 4
Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:P/A:N
Severity: Medium
Base Score: 4.3
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Severity: Medium
Base Score: 5.3
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Severity: Medium