CVE-2025-48375 MEDIUM

CVE-2025-48375: Schule Missing Rate Limiting on OTP Email Requests – Susceptible to Abuse & DoS

Vendor Schule111
Product Schule
Weakness CWE-770 · Uncontrolled resource consumption
Published May 23, 2025
Last update May 23, 2025
View on NVD All CVEs

CVSS base score

6.6/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U

What the vulnerability does

01Description

Schule is open-source school management system software. Prior to version 1.0.1, the file forgot_password.php (or equivalent endpoint responsible for email-based OTP generation) lacks proper rate limiting controls, allowing attackers to abuse the OTP request functionality. This vulnerability can be exploited to send an excessive number of OTP emails, leading to potential denial-of-service (DoS) conditions or facilitating user harassment through email flooding. Version 1.0.1 fixes the issue.

Key dates

02Disclosure timeline

May 23, 2025 CVE published
May 23, 2025 Record updated

Related vulnerabilities

04Related CVE

CVE-2022-46159 Any authenticated Discourse user can create an unlisted topic CVE-2026-35562 Allocation of resources without limits in parsing components in Amazon Athena ODBC driver CVE-2026-1848 Connections received from the proxy port may not count towards total accepted connections CVE-2021-34568 WAGO I/O-Check Service prone to Allocation of Resources Without Limits or Throttling CVE-2023-6337 Vault May be Vulnerable to a Denial of Service Through Memory Exhaustion When Handling Large HTTP Requests