CVE-2025-48372
Schule Has Insecure OTP Length, is Susceptible to Brute-Force Attacks
- State
- Published
- Severity
- 6.6 Medium
- Published
- May 22, 2025
- Updated
- May 23, 2025
- Reserved
- May 19, 2025
Description
Schule is open-source school management system software. The generateOTP() function generates a 4-digit numeric One-Time Password (OTP). Prior to version 1.0.1, even if a secure random number generator is used, the short length and limited range (1000–9999) results in only 9000 possible combinations. This small keyspace makes the OTP highly vulnerable to brute-force attacks, especially in the absence of strong rate-limiting or lockout mechanisms. Version 1.0.1 fixes the issue.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.6 Medium | 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 | GitHub_M |
Weaknesses
- CWE-521 Weak Password Requirements
Affected Products
| Product | Versions |
|---|---|
Schuleschule111 |
|
References
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