Description
Chamilo LMS is an open-source learning management system. In versions prior to 2.0.0-RC.3, an insecure direct object modification vulnerability in the PUT /api/users/{id} endpoint allows any authenticated user with ROLE_STUDENT to escalate their privileges to ROLE_ADMIN by modifying the roles field on their own user record. The API Platform security expression is_granted('EDIT', object) only verifies record ownership, and the roles field is included in the writable serialization group, enabling any user to set arbitrary roles such as ROLE_ADMIN. Successful exploitation grants full administrative control of the platform, including access to all courses, user data, grades, and administrative settings. This issue has been fixed in version 2.0.0-RC.3.
INFO
Published Date :
2026-04-14T21:37:55.490Z
Last Modified :
2026-04-15T14:24:29.902Z
Source :
GitHub_M
AFFECTED PRODUCTS
The following products are affected by CVE-2026-40291 vulnerability.
| Vendors | Products |
|---|---|
| Chamilo |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2026-40291.
