CVE Watch24 jul 2026

CVE-2026-40291

Chamilo LMS is an open-source learning management system. In versions prior to 2.0.0-RC.3, an insecure direct object modification vulnerabil

CVSS

8.8

Alto

EPSS

0.3%

p24

KEV

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Exploit Today

0-100

Publicado: 14 abr 2026 · Última mod.: 24 jul 2026 · CWE-269 · CWE-863

EPSS · 30d

0.3%EPSS · 30 días0.3%

2026-08-142026-09-11

Descripción técnica

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.

Referencias oficiales

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