CVE-2026-121732 RosarioSIS before 12.9 Improper Authorization via Student Billing Mass Assignment

Low 2.1 Published 3 Nov 2026 Updated 9 Nov 2026

Exploited in the wild: Not known
Fix: None listed

What is CVE-2026-121732?

CVE-2026-121732 is a low-severity vulnerability in francoisjacquet RosarioSIS, published on 3 Nov 2026.

Official 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.

Weakness: CWE-639

Which versions are affected by CVE-2026-121732?

How do I fix CVE-2026-121732?

No fix has been published for CVE-2026-121732 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-121732 being exploited?

There is no known exploitation of CVE-2026-121732 in the wild and no public exploit code.

Sources

Also known as GHSA-mfq4-wm65-76f5.