CVE-2026-114388

Description

Chamilo LMS 2.0.0 pre-releases from 2.0.0-alpha.1 before 2.0.0-RC.3 contain a missing access control vulnerability in GradebookController that allows unauthenticated users to modify gradebook certificates. Attackers can request the set_default_certificate endpoint with any course id and document id to tamper with certificate configuration for any course.

References

• https://github.com/chamilo/chamilo-lms/blob/v2.0.0-RC.2/src/CoreBundle/Controller/GradebookController.php#L52-L78
• https://github.com/chamilo/chamilo-lms/commit/2861afd4896ff898a950302f2c00f44726fa6f0a
• https://github.com/chamilo/chamilo-lms/issues/7671
• https://github.com/chamilo/chamilo-lms/releases/tag/v2.0.0-RC.3
• https://www.vulncheck.com/advisories/chamilo-lms-2.0.0-alpha.1-before-2.0.0-rc.3-missing-authorization-via-gradebookcontroller