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CVE-2026-33737 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CNA: [email protected]CVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/chamilo/chamilo-lms/commit/22b1cb1c609b643765c88654155aba27070c927e	[email protected]	Patch
https://github.com/chamilo/chamilo-lms/commit/af6b7002af7c15825e98fc522e2ead0d00cacaa3	[email protected]	Patch
https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-c4ww-qgf2-v89j	[email protected]	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-611	Improper Restriction of XML External Entity Reference	[email protected]

Affected Products

Product	Versions
chamilo chamilo lms	< 1.11.38 2.0.0 alpha1 2.0.0 alpha2 2.0.0 alpha3 2.0.0 alpha4
CPE 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:::::: Remediation No remediation found in references.

Product

Versions

chamilo chamilo lms

< 1.11.38

2.0.0 alpha1

2.0.0 alpha2

2.0.0 alpha3

2.0.0 alpha4

CPE

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:*:*:*:*:*:*

Remediation

No remediation found in references.

Change History

4 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Apr 16, 2026	Initial Analysis	[email protected]
Apr 10, 2026	New CVE Received	[email protected]