Schule Has Client-Side Role-Based Access Control (RBAC) Bypass Vulnerability
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-863.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Schule (schule111) Fixed in 1.0.1
Timeline
- 2026-10-02 Threatist record created from CVE-2025-48373
References
More schule111 Schule School Management System vulnerabilities
- TI-2025-30701 Schule Missing Rate Limiting on OTP Email Requests – Susceptible to Abuse & DoS CVSS 4.0MEDIUM 6.6
- TI-2025-30698 Schule Has Insecure OTP Length, is Susceptible to Brute-Force Attacks CVSS 4.0MEDIUM 6.6
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences