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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.
Use CWE-639, Chamilo vendor hub and Chamilo Lms product page to widen CVE-2026-33703 into its surrounding weakness, vendor, and product context.
Compare it with CVE-2026-40291, CVE-2026-35196 and CVE-2026-34160 for nearby disclosures in the same product family.