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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.002 (14.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 14.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Classroomio — versions 0.1.13
Weakness classification (CWE)
Public proof-of-concept exploits
References
- classroomio.com (Product)
- github.com/classroomio/classroomio (Product)
- github.com/Rivek619/CVE-2025-65670 (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.