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 export_all_certificates action, where the course code retrieved from the session variable $_SESSION['_cid'] via api_get_course_id() is concatenated directly into a shell_exec() command string without sanitization or escaping using escapeshellarg(). If an attacker can manipulate or poison their session data to inject shell metacharacters into the _cid variable, they can achieve arbitrary command execution on the underlying server. Successful exploitation grants full access to read system files and credentials, alters the application and database, or disrupts server availability. This issue has been fixed in version 2.0.0-RC.3.
References
| Link | Resource |
|---|---|
| https://github.com/chamilo/chamilo-lms/commit/62671e5e268f235cddfba704edee90f35c234df1 | Patch |
| https://github.com/chamilo/chamilo-lms/releases/tag/v2.0.0-RC.3 | Product Release Notes |
| https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-crc6-r6c7-44q3 | Exploit Vendor Advisory |
Configurations
Configuration 1 (hide)
|
History
22 Apr 2026, 18:37
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Chamilo chamilo Lms
Chamilo |
|
| References | () https://github.com/chamilo/chamilo-lms/commit/62671e5e268f235cddfba704edee90f35c234df1 - Patch | |
| References | () https://github.com/chamilo/chamilo-lms/releases/tag/v2.0.0-RC.3 - Product, Release Notes | |
| References | () https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-crc6-r6c7-44q3 - Exploit, Vendor Advisory | |
| CPE | cpe:2.3:a:chamilo:chamilo_lms:2.0.0:alpha2:*:*:*:*:*:* cpe:2.3:a:chamilo:chamilo_lms:2.0.0:alpha3:*:*:*:*:*:* cpe:2.3:a:chamilo:chamilo_lms:2.0.0:alpha1:*:*:*:*:*:* cpe:2.3:a:chamilo:chamilo_lms:*:*:*:*:*:*:*:* cpe:2.3:a:chamilo:chamilo_lms:2.0.0:alpha5:*:*:*:*:*:* cpe:2.3:a:chamilo:chamilo_lms:2.0.0:alpha4:*:*:*:*:*:* cpe:2.3:a:chamilo:chamilo_lms:2.0.0:beta1:*:*:*:*:*:* cpe:2.3:a:chamilo:chamilo_lms:2.0.0:beta2:*:*:*:*:*:* cpe:2.3:a:chamilo:chamilo_lms:2.0.0:rc1:*:*:*:*:*:* cpe:2.3:a:chamilo:chamilo_lms:2.0.0:rc2:*:*:*:*:*:* cpe:2.3:a:chamilo:chamilo_lms:2.0.0:beta3:*:*:*:*:*:* |
14 Apr 2026, 22:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-04-14 22:16
Updated : 2026-04-22 18:37
NVD link : CVE-2026-35196
Mitre link : CVE-2026-35196
CVE.ORG link : CVE-2026-35196
JSON object : View
Products Affected
chamilo
- chamilo_lms
CWE
CWE-78
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')