CVE-2026-121732
RosarioSIS before 12.9 Improper Authorization via Student Billing Mass Assignment
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.
Fixes and workarounds
Fix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: VulnCheckAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| RosarioSIS francoisjacquet francoisjacquet/rosariosis
composer |
≥ 0; < 12.9 (affected, custom)
Other versions: unaffected |
CNA: VulnCheck |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 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 | CNA: 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 | CNA: VulnCheck |
| 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X | NVD: [email protected] |
| 3.1 / 2.7 low |
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N | NVD: [email protected] |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://github.com/francoisjacquet/rosariosis/commit/a8bb460aacb11661934e6e91fbe0d8158fbc0c4fCNA: VulnCheck · patch
- https://github.com/francoisjacquet/rosariosisCNA: VulnCheck · product
- https://gitlab.com/francoisjacquet/rosariosis/-/issues/376CNA: VulnCheck · issue-tracking
- https://github.com/francoisjacquet/rosariosis/blob/v12.8.1/modules/Student_Billing/MassAssignFees.php#L15CNA: VulnCheck · technical-description
- https://github.com/francoisjacquet/rosariosis/blob/v12.8.1/modules/Student_Billing/MassAssignPayments.php#L16CNA: VulnCheck · technical-description
- https://github.com/francoisjacquet/rosariosis/releases/tag/v12.9CNA: VulnCheck · release-notes
- https://www.vulncheck.com/advisories/rosariosis-before-12.9-improper-authorization-via-student-billing-mass-assignmentCNA: VulnCheck · third-party-advisory
- https://github.com/francoisjacquet/rosariosis[email protected]
- https://github.com/francoisjacquet/rosariosis/blob/v12.8.1/modules/Student_Billing/MassAssignFees.php#L15[email protected]
- https://github.com/francoisjacquet/rosariosis/blob/v12.8.1/modules/Student_Billing/MassAssignPayments.php#L16[email protected]
- https://github.com/francoisjacquet/rosariosis/commit/a8bb460aacb11661934e6e91fbe0d8158fbc0c4f[email protected]
- https://github.com/francoisjacquet/rosariosis/releases/tag/v12.9[email protected]
- https://gitlab.com/francoisjacquet/rosariosis/-/issues/376[email protected]
- https://www.vulncheck.com/advisories/rosariosis-before-12.9-improper-authorization-via-student-billing-mass-assignment[email protected]
For agents and automation
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Endpoints and access details
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