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.

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

Published 2026-04-10 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.004 (26.5th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 26.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.001

Affected products

Chamilo Chamilo-Lms — versions < 1.11.38
Chamilo Lms

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

github.com/chamilo/chamilo-lms/security/advisories/GHSA-qwch-82q9-q999 (Vendor Advisory)
github.com/chamilo/chamilo-lms/commit/4a119f93abbfba6fe833580f2463c8d4afa500c2 (Patch)

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.