CVE-2026-33736 MEDIUM

CVE-2026-33736: Chamilo LMS has an Insecure Direct Object Reference (IDOR) - User Data Exposure

Vendor Chamilo

Product chamilo-lms

Weakness CWE-639 · IDOR

Published April 10, 2026

Last update April 13, 2026

View on NVD All CVEs

CVSS base score

6.5/10

Attack vector Network

Attack complexity Low

Privileges required Low

User interaction None

Confidentiality High

Integrity None

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 10, 2026 CVE published

April 13, 2026 Record updated

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-33736 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/639.html

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04Related CVE

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