CVE-2026-33737

MEDIUM

Chamilo LMS XML Parsing - XML External Entity Injection

Title source: manual

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.

References (3)

Core 3

Core References

X_Refsource_Confirm x_refsource_confirm

https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-c4ww-qgf2-v89j

X_Refsource_Misc x_refsource_misc

https://github.com/chamilo/chamilo-lms/commit/22b1cb1c609b643765c88654155aba27070c927e

View Writeup ZIP pw:eip

X_Refsource_Misc x_refsource_misc

https://github.com/chamilo/chamilo-lms/commit/af6b7002af7c15825e98fc522e2ead0d00cacaa3

View Writeup ZIP pw:eip

Scores

CVSS v3 5.3

EPSS 0.0022

EPSS Percentile 12.3%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-611

Status published

Products (4)

chamilo/chamilo-lms < 1.11.38

chamilo/chamilo-lms >= 2.0.0-alpha.1, < 2.0.0-RC.3

chamilo/chamilo_lms 2.0.0 alpha1 (10 CPE variants)

chamilo/chamilo_lms < 1.11.38

Published Apr 10, 2026

Tracked Since Apr 11, 2026