{"id":"CVE-2026-121732","title":"RosarioSIS before 12.9 Improper Authorization via Student Billing Mass Assignment","summary":"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 su…","severity":"low","cvss":2.7,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N","cvssSource":"cna","cwe":["CWE-639"],"vendor":"francoisjacquet","product":"RosarioSIS","affected":["RosarioSIS < 12.9"],"published":"2026-11-03","updated":"2026-11-03","sourceUpdated":"2026-11-03T22:55:37.220Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-121732","references":[{"url":"https://github.com/francoisjacquet/rosariosis/commit/a8bb460aacb11661934e6e91fbe0d8158fbc0c4f","label":"Patch Commit"},{"url":"https://github.com/francoisjacquet/rosariosis"},{"url":"https://gitlab.com/francoisjacquet/rosariosis/-/issues/376"},{"url":"https://github.com/francoisjacquet/rosariosis/blob/v12.8.1/modules/Student_Billing/MassAssignFees.php#L15"},{"url":"https://github.com/francoisjacquet/rosariosis/blob/v12.8.1/modules/Student_Billing/MassAssignPayments.php#L16"},{"url":"https://github.com/francoisjacquet/rosariosis/releases/tag/v12.9","label":"RosarioSIS v12.9 Release Notes"},{"url":"https://www.vulncheck.com/advisories/rosariosis-before-12.9-improper-authorization-via-student-billing-mass-assignment","label":"VulnCheck Advisory: RosarioSIS before 12.9 Improper Authorization via Student Billing Mass Assignment"}],"tags":["cve.org"],"epss":0.00236,"epssPercentile":0.14651,"ingestedAt":"2026-11-05T20:33:06.610Z","slug":"CVE-2026-121732","body":"## Overview\n\nRosarioSIS 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.\n\n## Affected\n\n- `RosarioSIS < 12.9`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":15,"depthScoreParts":{"impact":14.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}