CVE-2026-33141

EUVD-2026-21535
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.5 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 6%
Affected Products (NVD)
VendorProductVersion
chamilochamilo_lms
𝑥
≤ 1.11.38
chamilochamilo_lms
2.0.0:alpha1
chamilochamilo_lms
2.0.0:alpha2
chamilochamilo_lms
2.0.0:alpha3
chamilochamilo_lms
2.0.0:alpha4
chamilochamilo_lms
2.0.0:alpha5
chamilochamilo_lms
2.0.0:beta1
chamilochamilo_lms
2.0.0:beta2
chamilochamilo_lms
2.0.0:beta3
chamilochamilo_lms
2.0.0:rc1
chamilochamilo_lms
2.0.0:rc2
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/chamilo/chamilo-lms/commit/792ba05953470ca971617fe2674ed14c1479fa80
https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-j2pr-2r5w-jrpj