CVE-2025-48372 – Schule One-Time Password Brute-Force Vulnerability

CVE ID : CVE-2025-48372

Published : May 22, 2025, 9:15 p.m. | 2 hours ago

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.

Severity: 0.0 | NA

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