CVE-2026-33702 Details
Description
Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, Chamilo LMS contains an Insecure Direct Object Reference (IDOR) vulnerability in the Learning Path progress saving endpoint. The file lp_ajax_save_item.php accepts a uid (user ID) parameter directly from $_REQUEST and uses it to load and modify another user's Learning Path progress — including score, status, completion, and time — without verifying that the requesting user matches the target user ID. Any authenticated user enrolled in a course can overwrite another user's Learning Path progress by simply changing the uid parameter in the request. This vulnerability is fixed in 1.11.38 and 2.0.0-RC.3.
A vulnerability allowing Insecure Direct Object Reference (IDOR) has been identified in Chamilo LMS versions prior to 1.11.38 and 2.0.0-RC.3. This vulnerability exists in the Learning Path progress saving endpoint, specifically within the file 'lp_ajax_save_item.php'. The issue arises because the endpoint accepts a user ID parameter from the request without proper validation, allowing any authenticated user enrolled in a course to modify another user's Learning Path progress, including scores, statuses, completion times, and more.
Users can update to Chamilo LMS versions 1.11.38 or 2.0.0-RC.3, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 13, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-639 | Authorization Bypass Through User-Controlled Key | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| chamilo chamilo lms | < 1.11.38 2.0.0 alpha1 2.0.0 alpha2 2.0.0 alpha3 2.0.0 alpha4 2.0.0 alpha5 2.0.0 beta1 2.0.0 beta2 2.0.0 beta3 2.0.0 rc1 2.0.0 rc2 |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 16, 2026 | Initial Analysis | [email protected] |
| Apr 13, 2026 | CVE Modified | CISA-ADP |
| Apr 10, 2026 | New CVE Received | [email protected] |