CVE-2025-65670: Classroomio

Medium severity, CVSS 4.3. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• Classroomio Classroomio: version 0.1.13 only

Published 2025-11-26. Last modified 2026-07-05.