CVE-2026-33141: CWE-639: Authorization Bypass Through User-Controlled Key in chamilo chamilo-lms
Chamilo LMS versions prior to 2. 0. 0-RC. 3 contain an authorization bypass vulnerability in the REST API stats endpoint. This Insecure Direct Object Reference (IDOR) flaw allows any authenticated user, including low-privilege students, to access other users' learning progress, certificates, and gradebook scores for any course without proper enrollment or supervisory rights. The vulnerability has a CVSS score of 6. 5, indicating medium severity. It is fixed in version 2. 0. 0-RC.
AI Analysis
Technical Summary
CVE-2026-33141 is an authorization bypass vulnerability (CWE-639) in chamilo-lms before version 2.0.0-RC.3. The issue exists in the REST API stats endpoint, where insufficient access control allows authenticated users with ROLE_USER privileges to read sensitive information belonging to other users, such as learning progress, certificates, and gradebook scores, regardless of enrollment or supervisory relationships. This constitutes an Insecure Direct Object Reference (IDOR) vulnerability. The flaw is resolved in chamilo-lms version 2.0.0-RC.3.
Potential Impact
Exploitation of this vulnerability allows unauthorized disclosure of sensitive user data including learning progress, certificates, and gradebook scores. This can lead to privacy violations and potential misuse of academic records. There is no indication of impact on data integrity or availability. No known exploits in the wild have been reported.
Mitigation Recommendations
Upgrade chamilo-lms to version 2.0.0-RC.3 or later, where this vulnerability is fixed. Since no official patch or temporary workaround details are provided, applying the fixed version is the recommended remediation. Patch status is confirmed by the vendor advisory stating the issue is resolved in 2.0.0-RC.3.
CVE-2026-33141: CWE-639: Authorization Bypass Through User-Controlled Key in chamilo chamilo-lms
Description
Chamilo LMS versions prior to 2. 0. 0-RC. 3 contain an authorization bypass vulnerability in the REST API stats endpoint. This Insecure Direct Object Reference (IDOR) flaw allows any authenticated user, including low-privilege students, to access other users' learning progress, certificates, and gradebook scores for any course without proper enrollment or supervisory rights. The vulnerability has a CVSS score of 6. 5, indicating medium severity. It is fixed in version 2. 0. 0-RC.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-33141 is an authorization bypass vulnerability (CWE-639) in chamilo-lms before version 2.0.0-RC.3. The issue exists in the REST API stats endpoint, where insufficient access control allows authenticated users with ROLE_USER privileges to read sensitive information belonging to other users, such as learning progress, certificates, and gradebook scores, regardless of enrollment or supervisory relationships. This constitutes an Insecure Direct Object Reference (IDOR) vulnerability. The flaw is resolved in chamilo-lms version 2.0.0-RC.3.
Potential Impact
Exploitation of this vulnerability allows unauthorized disclosure of sensitive user data including learning progress, certificates, and gradebook scores. This can lead to privacy violations and potential misuse of academic records. There is no indication of impact on data integrity or availability. No known exploits in the wild have been reported.
Mitigation Recommendations
Upgrade chamilo-lms to version 2.0.0-RC.3 or later, where this vulnerability is fixed. Since no official patch or temporary workaround details are provided, applying the fixed version is the recommended remediation. Patch status is confirmed by the vendor advisory stating the issue is resolved in 2.0.0-RC.3.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-03-17T20:35:49.929Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69d93c061cc7ad14dada4d60
Added to database: 4/10/2026, 6:05:58 PM
Last enriched: 4/10/2026, 6:21:05 PM
Last updated: 4/10/2026, 7:52:00 PM
Views: 5
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