CVE-2026-33704

Chamilo LMS is a learning management system. Prior to 1.11.38, any authenticated user including students can write arbitrary content to files on the server via the BigUpload endpoint. The key parameter controls the filename and the raw POST body becomes the file content. While .php extensions are...

CVE-2026-33737

Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, multiple files use simplexmlloadstring without XXE protection. With LIBXMLNOENT flag, arbitrary server files can be read. This vulnerability is fixed in 1.11.38 and 2.0.0-RC.3...

CVE-2026-33736

Chamilo LMS is a learning management system. Prior to 2.0.0-RC.3, any authenticated user including ROLESTUDENT can enumerate all platform users and access personal information email, phone, roles via GET /api/users, including administrator accounts. This vulnerability is fixed in 2.0.0-RC.3...

CVE-2026-33704

Chamilo LMS is a learning management system. Prior to 1.11.38, any authenticated user including students can write arbitrary content to files on the server via the BigUpload endpoint. The key parameter controls the filename and the raw POST body becomes the file content. While .php extensions are...

CVE-2026-33706

Chamilo LMS is a learning management system. Prior to 1.11.38, any authenticated user with a REST API key can modify their own status field via the updateuserfromusername endpoint. A student status=5 can change their status to Teacher/CourseManager status=1, gaining course creation and management...

CVE-2026-33710 Chamilo LMS has Weak REST API Key Generation (Predictable)

Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, REST API keys are generated using md5time + userid 5 - rand10000, 10000. The rand10000, 10000 call always returns exactly 10000 min == max, making the formula effectively md5timestamp + userid5 - 10000. An attacker who...

CVE-2026-33708

Chamilo LMS exposes PII via the get_user_info_from_username REST endpoint before version 1.11.38. Any authenticated user (including students) can retrieve another user’s email, first name, last name, user ID, and active status due to missing authorization checks. This has been fixed in 1.11.38. R...

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-2026-33705 Chamilo LMS has unauthenticated access to Twig template source files exposes application logic

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-2026-33705 Chamilo LMS has unauthenticated access to Twig template source files exposes application logic

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...

EUVD-2026-21557

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-2026-33705

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-2026-33704

CVE-2026-33704 affects Chamilo LMS prior to version 1.11.38. An authenticated user (including students) can use the BigUpload endpoint to write arbitrary content to server files: the key parameter selects the filename and the raw POST body becomes the file contents. Although .php extensions are f...

EUVD-2026-21555

Chamilo LMS is a learning management system. Prior to 1.11.38, any authenticated user including students can write arbitrary content to files on the server via the BigUpload endpoint. The key parameter controls the filename and the raw POST body becomes the file content. While .php extensions are...

EUVD-2026-21543

Chamilo LMS is a learning management system. Prior to 2.0.0-RC.3, an Insecure Direct Object Reference IDOR vulnerability in the /social-network/personal-data/userId endpoint allows any authenticated user to access full personal data and API tokens of arbitrary users by modifying the userId...

CVE-2026-33141

Chamilo LMS is a learning management system. Prior to 2.0.0-RC.3, an Insecure Direct Object Reference IDOR vulnerability in the REST API stats endpoint allows any authenticated user including low-privilege students with ROLEUSER to read any other user's learning progress, certificates, and...

CVE-2026-31940

Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, in main/lp/aicchacp.php, user-controlled request parameters are directly used to set the PHP session ID before loading global bootstrap. This leads to session fixation. This vulnerability is fixed in 1.11.38 and...

CVE-2026-33702

Chamilo LMS before 1.11.38 and 2.0.0-RC.3 contains an IDOR in lp_ajax_save_item.php where a uid is read from $_REQUEST and used to load/modify another user’s Learning Path progress (score, status, completion, time) without verifying the requester’s identity. Any authenticated course-enrolled user...

CVE-2026-33698 Chamilo LMS affected by unauthenticated RCE in main/install folder

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-2026-33698

Chamilo LMS prior to 1.11.38 is vulnerable to a chained attack that can enable otherwise-blocked PHP code from the main/install/ directory, allowing an unauthenticated attacker to modify existing files or create new files where permitted by system permissions. The issue affects portals where main...