CVE-2026-121732
RosarioSIS before 12.9 Improper Authorization via Student Billing Mass Assignment
- State
- Published
- Severity
- 2.1 Low
- Published
- Nov 3, 2026
- Updated
- Nov 3, 2026
- Reserved
- Nov 3, 2026
Description
RosarioSIS before 12.9 contains an improper authorization vulnerability that allows school-scoped administrators to assign fees and payments to students of other schools via MassAssignFees.php and MassAssignPayments.php. Attackers can substitute foreign student IDs in the student[] POST array of a modfunc=save request to alter other schools' student billing balances, breaking school isolation.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 2.1 Low | CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 2.7 Low | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N | VulnCheck |
Weaknesses
- CWE-639 Authorization Bypass Through User-Controlled Key
Affected Products
| Product | Versions |
|---|---|
RosarioSISfrancoisjacquet |
|
References
- Patch Commitpatch
- https://github.com/francoisjacquet/rosariosisproduct
- https://gitlab.com/francoisjacquet/rosariosis/-/issues/376issue-tracking
- https://github.com/francoisjacquet/rosariosis/blob/v12.8.1/modules/Student_Billing/MassAssignFees.php#L15technical-description
- https://github.com/francoisjacquet/rosariosis/blob/v12.8.1/modules/Student_Billing/MassAssignPayments.php#L16technical-description
- RosarioSIS v12.9 Release Notesrelease-notes
- VulnCheck Advisory: RosarioSIS before 12.9 Improper Authorization via Student Billing Mass Assignmentthird-party-advisory
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