francoisjacquet RosarioSIS up to 12.8 MassAssignFees.php student[] improper authorization

Summaryinfo

A vulnerability categorized as problematic has been discovered in francoisjacquet RosarioSIS up to 12.8. Impacted is an unknown function of the file MassAssignFees.php. Such manipulation of the argument student[] leads to improper authorization. This vulnerability is documented as CVE-2026-121732. The attack can be executed remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in francoisjacquet RosarioSIS up to 12.8. Affected by this issue is an unknown functionality of the file MassAssignFees.php. The manipulation of the argument student[] with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is integrity. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-121732 since 11/03/2026. The exploitation is known to be easy. The attack may be launched remotely. The exploitation needs additional levels of successful authentication. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1548.002 by the MITRE ATT&CK project.

By approaching the search of inurl:MassAssignFees.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 12.9 eliminates this vulnerability.

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Productinfo

Vendor

• francoisjacquet

Name

• RosarioSIS

Version

• 12.0
• 12.1
• 12.2
• 12.3
• 12.4
• 12.5
• 12.6
• 12.7
• 12.8

Website

• Product: https://github.com/francoisjacquet/rosariosis/

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