CVE-2026-33703

Description

Chamilo LMS is a learning management system. Prior to 2.0.0-RC.3, an Insecure Direct Object Reference (IDOR) vulnerability in the /social-network/personal-data/{userId} endpoint allows any authenticated user to access full personal data and API tokens of arbitrary users by modifying the userId parameter. This results in mass disclosure of sensitive user information and credentials, enabling a full platform data breach. This vulnerability is fixed in 2.0.0-RC.3.

PUBLISHED Reserved 2026-03-23 | Published 2026-04-10 | Updated 2026-04-14 | Assigner GitHub_M

Problem types

CWE-639: Authorization Bypass Through User-Controlled Key

Product status

References

github.com/...lo-lms/security/advisories/GHSA-27x6-c5c7-gpf5

cve.org (CVE-2026-33703)

nvd.nist.gov (CVE-2026-33703)

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