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-2026-31281

Totara LMS v19.1.5 and before is vulnerable to HTML Injection. An attacker can inject malicious HTML code in a message and send it to all the users in the application, resulting in executing the code and may lead to session hijacking and executing commands on the victim's browser. NOTE: The...

PT-2026-32359

Name of the Vulnerable Software and Affected Versions Totara LMS versions prior to 19.1.6 Description Incorrect Access Control allows the login page code to be manipulated to reveal the login form. This can be combined with a missing rate-limit on the login form to facilitate a brute force attack...

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-2026-33710

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-2026-33737

Chamilo LMS contains an XML External Entity (XXE) vulnerability in multiple files using simplexml_load_string() without XXE protection. With LIBXML_NOENT enabled, an attacker could read arbitrary server files. The issue affects versions prior to 1.11.38 and 2.0.0-RC.3, and is fixed in 1.11.38 and...

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-2026-33708 Chamilo LMS has REST API PII Exposure via get_user_info_from_username

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...

EUVD-2026-21561

Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, the default password reset mechanism generates tokens using sha1$email with no random component, no expiration, and no rate limiting. An attacker who knows a user's email can compute the reset token and change the...

CVE-2026-33706 Chamilo LMS has a REST API Self-Privilege Escalation (Student → Teacher)

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-2026-33705 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-2026-33704

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...

CVE-2026-33703

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-2026-31940

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-2025-66447

Chamilo LMS is a learning management system. From 1.11.0 to 2.0-beta.1, anyone can trigger a malicious redirect through the use of the redirect parameter to /login. This vulnerability is fixed in 2.0-beta.2...

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...

EUVD-2026-21539

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-2026-33141 Chamilo LMS has an IDOR in REST API Stats Endpoint Exposes Any User's Learning Data

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...

EUVD-2026-21531

Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, an unrestricted file upload vulnerability in the exercise sound upload function allows an authenticated teacher to upload a PHP webshell by spoofing the Content-Type header to audio/mpeg. The uploaded file retains its...