CVE-2026-114390
Chamilo LMS 2.0.0-alpha.1 before 2.0.0-RC.3 Missing Authorization in AJAX Handlers
- State
- Published
- Severity
- 6.9 Medium
- Published
- Oct 21, 2026
- Updated
- Oct 21, 2026
- Reserved
- Oct 21, 2026
Description
Chamilo LMS from 2.0.0-alpha.1 before 2.0.0-RC.3 contains a missing authorization vulnerability in legacy AJAX handlers under public/main/inc/ajax/ that exposes user names and certificates. Unauthenticated or low-privileged users can call actions like get_users_by_group_course, user_by_all_roles, and export_all_certificates to harvest user names and other learners' certificate PDFs.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 5.3 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N | VulnCheck |
Weaknesses
- CWE-862 Missing Authorization
Affected Products
| Product | Versions |
|---|---|
chamilo-lmschamilo |
|
References
- https://github.com/chamilo/chamilo-lms/issues/7671issue-tracking
- https://github.com/chamilo/chamilo-lms/commit/2861afd4896ff898a950302f2c00f44726fa6f0apatch
- chamilo-lms v2.0.0-RC.3 Release Notesrelease-notes
- https://github.com/chamilo/chamilo-lms/blob/v2.0.0-RC.2/public/main/inc/ajax/course.ajax.php#L350-L426technical-description
- https://github.com/chamilo/chamilo-lms/blob/v2.0.0-RC.2/public/main/inc/ajax/usergroup.ajax.php#L17-L50technical-description
- https://github.com/chamilo/chamilo-lms/blob/v2.0.0-RC.2/public/main/inc/ajax/gradebook.ajax.php#L58-L99technical-description
- VulnCheck Advisory: Chamilo LMS 2.0.0-alpha.1 before 2.0.0-RC.3 Missing Authorization in AJAX Handlersthird-party-advisory
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