CVE-2026-34161

Chamilo LMS is an open-source learning management system. In versions prior to 2.0.0-RC.3, a Stored Cross-Site Scripting XSS vulnerability exists in the social post attachment upload functionality, where an authenticated user can upload a malicious HTML file containing JavaScript via the...

CVE-2026-33714

Chamilo is an open-source learning management system LMS. Version 2.0.0-RC.2 contains a SQL Injection vulnerability in the statistics AJAX endpoint, which is an incomplete fix for CVE-2026-30881. While CVE-2026-30881 was patched by applying Security::removeXSS to the datestart and dateend...

CVE-2026-33705

Chamilo LMS is a learning management system. Prior to 1.11.38, Twig template files .tpl under /main/template/default/ are directly accessible without authentication via HTTP GET requests. These templates expose internal application logic, variable names, AJAX endpoint URLs, and admin panel...

CVE-2026-33708

Chamilo LMS is a learning management system. Prior to 1.11.38, the getuserinfofromusername REST API endpoint returns personal information email, first name, last name, user ID, active status of any user to any authenticated user, including students. There is no authorization check. This...

CVE-2026-32893

Chamilo LMS is a learning management system. Prior to 2.0.0-RC.3, a Reflected Cross-Site Scripting XSS vulnerability in the exercise question list admin panel allows an attacker to execute arbitrary JavaScript in an authenticated teacher's browser. The pagination code merges all $GET parameters v...

CVE-2026-33698

Chamilo LMS is a learning management system. Prior to 1.11.38, a chained attack can enable otherwise-blocked PHP code from the main/install/ directory and allow an unauthenticated attacker to modify existing files or create new files where allowed by system permissions. This only affects portals...

CVE-2026-40291

Chamilo LMS is an open-source learning management system. In versions prior to 2.0.0-RC.3, an insecure direct object modification vulnerability in the PUT /api/users/id endpoint allows any authenticated user with ROLESTUDENT to escalate their privileges to ROLEADMIN by modifying the roles field o...

CVE-2026-35196

Chamilo LMS is an open-source learning management system. In versions prior to 2.0.0-RC.3, an OS Command Injection vulnerability exists in the main/inc/ajax/gradebook.ajax.php endpoint within the exportallcertificates action, where the course code retrieved from the session variable $SESSION'cid'...

CVE-2026-40291

Chamilo LMS exposes an insecure direct object modification in PUT /api/users/{id} prior to version 2.0.0-RC.3, allowing any authenticated user with ROLE_STUDENT to escalate to ROLE_ADMIN by modifying their own roles field. The API Platform check is_granted('EDIT', object) only verifies ownership,...

CVE-2026-40291 Chamilo LMS has Privilege Escalation via API User Role Modification

Chamilo LMS is an open-source learning management system. In versions prior to 2.0.0-RC.3, an insecure direct object modification vulnerability in the PUT /api/users/id endpoint allows any authenticated user with ROLESTUDENT to escalate their privileges to ROLEADMIN by modifying the roles field o...

CVE-2026-40291

Chamilo LMS is an open-source learning management system. In versions prior to 2.0.0-RC.3, an insecure direct object modification vulnerability in the PUT /api/users/id endpoint allows any authenticated user with ROLESTUDENT to escalate their privileges to ROLEADMIN by modifying the roles field o...

CVE-2026-40291 Chamilo LMS has Privilege Escalation via API User Role Modification

Chamilo LMS is an open-source learning management system. In versions prior to 2.0.0-RC.3, an insecure direct object modification vulnerability in the PUT /api/users/id endpoint allows any authenticated user with ROLESTUDENT to escalate their privileges to ROLEADMIN by modifying the roles field o...

CVE-2026-40291 Chamilo LMS has Privilege Escalation via API User Role Modification

Chamilo LMS is an open-source learning management system. In versions prior to 2.0.0-RC.3, an insecure direct object modification vulnerability in the PUT /api/users/id endpoint allows any authenticated user with ROLESTUDENT to escalate their privileges to ROLEADMIN by modifying the roles field o...

CVE-2026-35196 Chamilo LMS has OS Command Injection via export_all_certificates action

Chamilo LMS is an open-source learning management system. In versions prior to 2.0.0-RC.3, an OS Command Injection vulnerability exists in the main/inc/ajax/gradebook.ajax.php endpoint within the exportallcertificates action, where the course code retrieved from the session variable $SESSION'cid'...

EUVD-2026-22722

Chamilo LMS is an open-source learning management system. In versions prior to 2.0.0-RC.3, an OS Command Injection vulnerability exists in the main/inc/ajax/gradebook.ajax.php endpoint within the exportallcertificates action, where the course code retrieved from the session variable $SESSION'cid'...

CVE-2026-35196

Chamilo LMS vulnerable to OS Command Injection prior to 2.0.0-RC.3. The flaw resides in the gradebook.ajax.php endpoint (export_all_certificates action), where the course code is taken from $_SESSION['_cid'] via api_get_course_id() and concatenated into a shell_exec() command without sanitization...

CVE-2026-35196 Chamilo LMS has OS Command Injection via export_all_certificates action

Chamilo LMS is an open-source learning management system. In versions prior to 2.0.0-RC.3, an OS Command Injection vulnerability exists in the main/inc/ajax/gradebook.ajax.php endpoint within the exportallcertificates action, where the course code retrieved from the session variable $SESSION'cid'...

CVE-2026-35196 Chamilo LMS has OS Command Injection via export_all_certificates action

Chamilo LMS is an open-source learning management system. In versions prior to 2.0.0-RC.3, an OS Command Injection vulnerability exists in the main/inc/ajax/gradebook.ajax.php endpoint within the exportallcertificates action, where the course code retrieved from the session variable $SESSION'cid'...

EUVD-2026-22718

Chamilo LMS is an open-source learning management system. In versions prior to 2.0.0-RC.3, the /api/courserelusers endpoint is vulnerable to Insecure Direct Object Reference IDOR, allowing an authenticated attacker to modify the user parameter in the request body to enroll any arbitrary user into...

CVE-2026-34602 Chamilo LMS: IDOR in /api/course_rel_users Allows Unauthorized Enrollment of Arbitrary Users into Courses

Chamilo LMS is an open-source learning management system. In versions prior to 2.0.0-RC.3, the /api/courserelusers endpoint is vulnerable to Insecure Direct Object Reference IDOR, allowing an authenticated attacker to modify the user parameter in the request body to enroll any arbitrary user into...