Auth bypass in Schule111 Schule
CVE-2025-48373
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.
Vulnerability class: Broken Access Control
EPSS: 0.003 (26.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Schule111 Schule — versions < 1.0.1
- Schule111 Schule_school_management_system — versions 1.0.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-48373?
- CVE-2025-48373 is a critical-severity vulnerability in Schule111 Schule, classified under Incorrect Authorization. CVSS score: 9.1/10. Published 2025-05-22.
- How severe is CVE-2025-48373?
- Critical severity. CVSS v3 base score is 9.1 out of 10.
- Is CVE-2025-48373 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.