CVE-2026-33737

Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, multiple files use simplexml_load_string() without XXE protection. With LIBXML_NOENT flag, arbitrary server files can be read. This vulnerability is fixed in 1.11.38 and 2.0.0-RC.3.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/chamilo/chamilo-lms/commit/22b1cb1c609b643765c88654155aba27070c927e	Patch
https://github.com/chamilo/chamilo-lms/commit/af6b7002af7c15825e98fc522e2ead0d00cacaa3	Patch
https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-c4ww-qgf2-v89j	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:chamilo:chamilo_lms::::::::
	cpe:2.3:a:chamilo:chamilo_lms:2.0.0:alpha1::::::
	cpe:2.3:a:chamilo:chamilo_lms:2.0.0:alpha2::::::
	cpe:2.3:a:chamilo:chamilo_lms:2.0.0:alpha3::::::
	cpe:2.3:a:chamilo:chamilo_lms:2.0.0:alpha4::::::
	cpe:2.3:a:chamilo:chamilo_lms:2.0.0:alpha5::::::
	cpe:2.3:a:chamilo:chamilo_lms:2.0.0:beta1::::::
	cpe:2.3:a:chamilo:chamilo_lms:2.0.0:beta2::::::
	cpe:2.3:a:chamilo:chamilo_lms:2.0.0:beta3::::::
	cpe:2.3:a:chamilo:chamilo_lms:2.0.0:rc1::::::
	cpe:2.3:a:chamilo:chamilo_lms:2.0.0:rc2::::::

History

26 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) Chamilo LMS es un sistema de gestión de aprendizaje. Antes de 1.11.38 y 2.0.0-RC.3, múltiples archivos usan simplexml_load_string() sin protección XXE. Con la bandera LIBXML_NOENT, archivos de servidor arbitrarios pueden ser leídos. Esta vulnerabilidad está corregida en 1.11.38 y 2.0.0-RC.3.

Information

Published : 2026-04-10 19:16

Updated : 2026-10-26 21:10

NVD link : CVE-2026-33737

Mitre link : CVE-2026-33737

CVE.ORG link : CVE-2026-33737

JSON object : View

Products Affected

chamilo

chamilo_lms

CWE

CWE-611

Improper Restriction of XML External Entity Reference

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