CVE-2026-33736

MEDIUM

Chamilo LMS has an Insecure Direct Object Reference (IDOR) - User Data Exposure

Title source: cna

Description

Chamilo LMS is a learning management system. Prior to 2.0.0-RC.3, any authenticated user (including ROLE_STUDENT) can enumerate all platform users and access personal information (email, phone, roles) via GET /api/users, including administrator accounts. This vulnerability is fixed in 2.0.0-RC.3.

References (2)

[X_Refsource_Confirm] https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-fp2p-fj6c-x3x9

[X_Refsource_Misc] https://github.com/chamilo/chamilo-lms/commit/1739371ce1c562c007c7f5d53e6d65b7a4ff4109

View Writeup ZIP pw:eip

Scores

CVSS v3 6.5

EPSS 0.0003

EPSS Percentile 9.8%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Details

CWE

CWE-639

Status published

Products (2)

chamilo/chamilo-lms >= 2.0.0-alpha.1, < 2.0.0-RC.3

chamilo/chamilo_lms 2.0.0 alpha1 (10 CPE variants)

Published Apr 10, 2026

Tracked Since Apr 11, 2026