CVE-2025-48372

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.

Reserved 2025-05-19 | Published 2025-05-22 | Updated 2025-05-23 | Assigner GitHub_M

Problem types

CWE-521: Weak Password Requirements

Product status

< 1.0.1
affected

References

github.com/...Schule/security/advisories/GHSA-6c48-67xx-vqgc

github.com/...ommit/cd53abbea93943f2c60a5281d45bebadc57636b7

cve.org (CVE-2025-48372)

nvd.nist.gov (CVE-2025-48372)

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