Chamilo LMS has an Insecure Direct Object Reference (IDOR) - User Data Exposure

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Summary

CVECVE-2026-33736
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-10 19:16:24 UTC
Updated2026-04-10 19:16:24 UTC
DescriptionChamilo LMS is a learning management system. Prior to 2.0.0-RC.3, any authenticated user (including ROLE_STUDENT) can enumerate all platform users and access personal information (email, phone, roles) via GET /api/users, including administrator accounts. This vulnerability is fixed in 2.0.0-RC.3.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Problem Types: CWE-639 | CWE-639 CWE-639: Authorization Bypass Through User-Controlled Key

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
3.1CNADECLARED6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Chamilo Chamilo-lms affected >= 2.0.0-alpha.1, < 2.0.0-RC.3 Not specified

References

ReferenceSourceLinkTags
github.com/chamilo/chamilo-lms/security/advisories/GHSA-fp2p-fj6c-x3x9 [email protected] github.com
github.com/chamilo/chamilo-lms/commit/1739371ce1c562c007c7f5d53e6d65b7a4... [email protected] github.com
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