Resource exhaustion in Schule111 Schule
CVE-2025-48375
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.004 (34.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 34.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Schule111 Schule — versions < 1.0.1
- Schule111 Schule School Management System — versions 1.0.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/schule111/Schule/security/advisories/GHSA-h3f2-mc85-67gc (Exploit, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-48375?
- CVE-2025-48375 is a medium-severity vulnerability in Schule111 Schule, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.3/10. Published 2025-05-23.
- How severe is CVE-2025-48375?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2025-48375 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.