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CVE-2026-33141

MEDIUM CVSS 3.1: 6.5 EPSS 0.02%
Updated Apr 17, 2026
Chamilo
Parameter Value
CVSS 6.5 (MEDIUM)
Affected Versions before 1.11.38
Fixed In 2.0.0
Type CWE-862 (Missing Authorization), CWE-639 (Authorization Bypass)
Vendor Chamilo
Public PoC No

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption

CVSS Vector v3.1

Vulnerable Products 11

Configuration From (including) Up to (excluding)
Chamilo Chamilo_Lms
cpe:2.3:a:chamilo:chamilo_lms:*:*:*:*:*:*:*:*
<= 1.11.38
Chamilo Chamilo_Lms
cpe:2.3:a:chamilo:chamilo_lms:2.0.0:alpha1:*:*:*:*:*:*
Chamilo Chamilo_Lms
cpe:2.3:a:chamilo:chamilo_lms:2.0.0:alpha2:*:*:*:*:*:*
Chamilo Chamilo_Lms
cpe:2.3:a:chamilo:chamilo_lms:2.0.0:alpha3:*:*:*:*:*:*
Chamilo Chamilo_Lms
cpe:2.3:a:chamilo:chamilo_lms:2.0.0:alpha4:*:*:*:*:*:*
Chamilo Chamilo_Lms
cpe:2.3:a:chamilo:chamilo_lms:2.0.0:alpha5:*:*:*:*:*:*
Chamilo Chamilo_Lms
cpe:2.3:a:chamilo:chamilo_lms:2.0.0:beta1:*:*:*:*:*:*
Chamilo Chamilo_Lms
cpe:2.3:a:chamilo:chamilo_lms:2.0.0:beta2:*:*:*:*:*:*
Chamilo Chamilo_Lms
cpe:2.3:a:chamilo:chamilo_lms:2.0.0:beta3:*:*:*:*:*:*
Chamilo Chamilo_Lms
cpe:2.3:a:chamilo:chamilo_lms:2.0.0:rc1:*:*:*:*:*:*
Chamilo Chamilo_Lms
cpe:2.3:a:chamilo:chamilo_lms:2.0.0:rc2:*:*:*:*:*:*