8.8

CVE-2026-35196

Exploit

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 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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Chamilo ≫ Chamilo Lms Version <= 1.11.38
Chamilo ≫ Chamilo Lms Version 2.0.0 Update alpha1
Chamilo ≫ Chamilo Lms Version 2.0.0 Update alpha2
Chamilo ≫ Chamilo Lms Version 2.0.0 Update alpha3
Chamilo ≫ Chamilo Lms Version 2.0.0 Update alpha4
Chamilo ≫ Chamilo Lms Version 2.0.0 Update alpha5
Chamilo ≫ Chamilo Lms Version 2.0.0 Update beta1
Chamilo ≫ Chamilo Lms Version 2.0.0 Update beta2
Chamilo ≫ Chamilo Lms Version 2.0.0 Update beta3
Chamilo ≫ Chamilo Lms Version 2.0.0 Update rc1
Chamilo ≫ Chamilo Lms Version 2.0.0 Update rc2
VulnDex Vulnerability Enrichment
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EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 1.76% 0.751
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 8.8 2.8 5.9
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

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
Vendor Advisory
Exploit