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CVE-2026-33736

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

Published: Apr 10, 2026Updated: Apr 10, 2026 Sources: CVE List
NVD MITRE
6.5CVSS
MEDIUM

Chamilo 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.

EPSS Score
0.0%
Top 92.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None

Weaknesses

CWE-639CWE-639: Authorization Bypass Through User-Controlled Key

Affected Products

chamilo-lms
chamilo

Attack Graph

Products CVE Techniques Tactics

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Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-fp2p-fj6c-x3x9
github.com
https://github.com/chamilo/chamilo-lms/commit/1739371ce1c562c007c7f5d53e6d65b7a4ff4109
github.com

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