Is CVE-2026-34370 actively exploited?

No active exploitation of CVE-2026-34370 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-34370 be exploited remotely?

Yes. CVE-2026-34370 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-34370?

CVE-2026-34370 has a CVSS score of 6.5 (MEDIUM).

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MEDIUM

CVE-2026-34370

CWE-285Published: April 14, 2026· Updated: Apr 17, 2026

6.5

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:7.9th

Official Description

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.

NVD Source

Technical Analysis

CVE-2026-34370 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 6.5.