QloApps through 1.7.0 contains an improper access control vulnerability in AdminSlipController that allows hotel-restricted back-office employees to access credit slips of all hotels. Attackers can list, export as PDF, mark as redeemed, and generate store-credit vouchers from other hotels' refund records, exposing customer identities and amounts.
https://hackmd.io/@leediay/SyMoELioMx
https://github.com/Qloapps/QloApps/pull/1650
https://github.com/Qloapps/QloApps/commit/a759ae96d0d01e982d40f96d357c94bb30f3a7b3
https://github.com/Qloapps/QloApps/blob/v1.7.0/controllers/admin/AdminSlipController.php#L33-L41
https://github.com/Qloapps/QloApps/blob/v1.7.0/controllers/admin/AdminSlipController.php#L160-L229
https://github.com/Qloapps/QloApps/blob/v1.7.0/classes/order/OrderSlip.php#L273-L288
Published: 2026-10-13
Updated: 2026-10-14
Base Score: 5.5
Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:N
Severity: Medium
Base Score: 5.4
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/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:L/VI:L/VA:N/SC:N/SI:N/SA:N
Severity: Medium
EPSS: 0.00257