Combodo iTop 3.1.0 through 3.3.0 contains a missing authorization vulnerability in LinkSetController.php that allows authenticated console users to bypass profile grants by supplying arbitrary class and key parameters. Attackers can invoke the linkset delete, detach and get-remote-object routes to delete objects, clear external keys, and read object attributes without permission.
https://hackmd.io/@haind03/itop-linkset-unchecked-delete-detach-read-20261011
https://github.com/Combodo/iTop/blob/3.3.0/sources/Controller/Links/LinkSetController.php#L43-L121
https://github.com/Combodo/iTop/blob/3.3.0/sources/Controller/Links/LinkSetController.php#L272-L301
Published: 2026-10-11
Updated: 2026-10-11
Base Score: 6.5
Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P
Severity: Medium
Base Score: 6.3
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Severity: Medium
Base Score: 5.3
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
Severity: Medium