Auth bypass in Chamilo Chamilo-Lms
CVE-2026-33708
Chamilo LMS is a learning management system. Prior to 1.11.38, the get_user_info_from_username REST API endpoint returns personal information (email, first name, last name, user ID, active status) of any user to any authenticated user, including students. There is no authorization check. This vulnerability is fixed in 1.11.38.
Vulnerability class: Broken Access Control
EPSS: 0.002 (11.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Chamilo Chamilo-lms — versions < 1.11.38
- Chamilo Chamilo_lms
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-33708?
- CVE-2026-33708 is a medium-severity vulnerability in Chamilo Chamilo-Lms, classified under Missing Authorization. CVSS score: 6.5/10. Published 2026-04-10.
- How severe is CVE-2026-33708?
- Medium severity. CVSS v3 base score is 6.5 out of 10.