EUVD-2026-21535
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Lifecycle Timeline
3Description
Chamilo LMS is a learning management system. Prior to 2.0.0-RC.3, an Insecure Direct Object Reference (IDOR) vulnerability in the REST API stats endpoint allows any authenticated user (including low-privilege students with ROLE_USER) to read any other user's learning progress, certificates, and gradebook scores for any course, without enrollment or supervisory relationship. This vulnerability is fixed in 2.0.0-RC.3.
Analysis
Insecure Direct Object Reference in Chamilo LMS REST API stats endpoint allows authenticated low-privilege users to read unauthorized access to any user's learning progress, certificates, and gradebook scores across all courses prior to version 2.0.0-RC.3. The vulnerability requires only valid user credentials (accessible to students with ROLE_USER) and network access, enabling horizontal privilege escalation without administrative intervention or system compromise. …
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