6.5

CVE-2026-34370

Chamilo LMS: IDOR in the Notebook Module allows an attacker to view other users' private notes

Chamilo LMS is an open-source learning management system. In versions prior to 2.0.0-RC.3, the notebook module contains an Insecure Direct Object Reference (IDOR) vulnerability that allows any authenticated student to read the private course notes of any other user on the platform by manipulating the notebook_id parameter in the editnote action. The application fetches the note content using only the supplied integer ID without verifying that the requesting user owns the note, and the full title and HTML body are rendered in the edit form and returned to the attacker's browser. While ownership checks exist in the write paths (updateNote() and delete_note()), they are entirely absent from the read path (get_note_information()). This issue has been fixed in version 2.0.0-RC.3.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Chamilo ≫ Chamilo Lms Version <= 1.11.38
Chamilo ≫ Chamilo Lms Version 2.0.0 Update alpha1
Chamilo ≫ Chamilo Lms Version 2.0.0 Update alpha2
Chamilo ≫ Chamilo Lms Version 2.0.0 Update alpha3
Chamilo ≫ Chamilo Lms Version 2.0.0 Update alpha4
Chamilo ≫ Chamilo Lms Version 2.0.0 Update alpha5
Chamilo ≫ Chamilo Lms Version 2.0.0 Update beta1
Chamilo ≫ Chamilo Lms Version 2.0.0 Update beta2
Chamilo ≫ Chamilo Lms Version 2.0.0 Update beta3
Chamilo ≫ Chamilo Lms Version 2.0.0 Update rc1
Chamilo ≫ Chamilo Lms Version 2.0.0 Update rc2
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.23% 0.131
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 6.5 2.8 3.6
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE-285 Improper Authorization

The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.

CWE-639 Authorization Bypass Through User-Controlled Key

The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

https://github.com/chamilo/chamilo-lms/releases/tag/v2.0.0-RC.3
Product
Release Notes
https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-fm35-2hvw-564q
Vendor Advisory