CVE-2025-48375: Schule Missing Rate Limiting on OTP Email Requests – Susceptible to Abuse & DoS
Description
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.
Classification
CVE ID: CVE-2025-48375
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:N/VA:H/SC:N/SI:N/SA:N/E:U
Affected Products
Vendor: schule111
Product: Schule
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.06% (probability of being exploited)
EPSS Percentile: 17.47% (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-2025-48375https://github.com/schule111/Schule/security/advisories/GHSA-h3f2-mc85-67gc