CVE-2025-48373: Schule Has Client-Side Role-Based Access Control (RBAC) Bypass Vulnerability
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.
Classification
CVE ID: CVE-2025-48373
CVSS Base Severity: MEDIUM
CVSS Base Score: 6.6
CVSS 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
Problem Types
CWE-863: Incorrect AuthorizationAffected Products
Vendor: schule111
Product: Schule
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.06% (probability of being exploited)
EPSS Percentile: 20.39% (scored less or equal to compared to others)
EPSS Date: 2025-06-18 (when was this score calculated)
References
https://nvd.nist.gov/vuln/detail/CVE-2025-48373https://github.com/schule111/Schule/security/advisories/GHSA-37h9-qq7c-6mc9
https://github.com/schule111/Schule/commit/cbf7f509c37acd69b4ab8ee19d842de867b46b7e