Auth bypass in Classroomio
CVE-2025-65670
An Insecure Direct Object Reference (IDOR) in classroomio 0.1.13 allows students to access sensitive admin/teacher endpoints by manipulating course IDs in URLs, resulting in unauthorized disclosure of sensitive course, admin, and student data. The leak occurs momentarily before the system reverts to a normal state restricting access.
Vulnerability class: IDOR (Insecure Direct Object Reference)
EPSS: 0.002 (15.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Classroomio — versions 0.1.13
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Product)
- cve@mitre.org (Product)
- cve@mitre.org (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-65670?
- CVE-2025-65670 is a medium-severity vulnerability in Classroomio, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2025-11-26.
- How severe is CVE-2025-65670?
- Medium severity. CVSS v3 base score is 4.3 out of 10.
- Is CVE-2025-65670 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.