CVE-2026-35196

The record

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.

Affected packages

Related vulnerabilities

• CVE-2026-96376 Improper Neutralization of Special Elements used in an OS Command ("OS Command… CWE-78
• CVE-2026-113732 virtualenv is a tool for creating isolated virtual python environments. CWE-78
• CVE-2026-113776 virtualenv is a tool for creating isolated virtual python environments. CWE-78
• CVE-2026-113726 virtualenv is a tool for creating isolated virtual python environments. CWE-78
• CVE-2026-113725 virtualenv is a tool for creating isolated virtual python environments. CWE-78
• CVE-2026-113722 virtualenv is a tool for creating isolated virtual python environments. CWE-78
• CVE-2026-112943 launch-editor allows users to open files with line numbers in editor from Node.js. CWE-78
• CVE-2026-112900 Pillow is a Python imaging library. CWE-78