Chamilo LMS CStudio upload flow allows unauthenticated remote code execution

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-45140
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-17 21:17:12 UTC
Updated2026-09-24 21:25:27 UTC
DescriptionChamilo LMS is an open-source learning management system. Prior to 2.0.1, Chamilo LMS allows an unauthenticated remote attacker to execute arbitrary code on the server. The authoritative advisory does not identify the affected endpoint, component, input, or exploitation mechanism. This issue is fixed in version 2.0.1.

Risk And Classification

Primary CVSS: v3.1 9.8 CRITICAL from [email protected]

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

EPSS: 0.013260000 probability, percentile 0.697870000 (date 2026-09-25)

Problem Types: CWE-22 | CWE-94 | CWE-219 | CWE-434 | CWE-22 CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') | CWE-94 CWE-94: Improper Control of Generation of Code ('Code Injection') | CWE-219 CWE-219: Storage of File with Sensitive Data Under Web Root | CWE-434 CWE-434: Unrestricted Upload of File with Dangerous Type

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Chamilo Chamilo-lms affected < 2.0.1 Not specified

References

ReferenceSourceLinkTags
github.com/chamilo/chamilo-lms/releases/tag/v2.0.1 [email protected] github.com
github.com/chamilo/chamilo-lms/commit/4bdba1b9a8820bd70c0809317775d7f6ea... [email protected] github.com
github.com/chamilo/chamilo-lms/security/advisories/GHSA-g4c3-4g96-6g4m [email protected] github.com
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