CVE-2026-33737

EUVD-2026-21569
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.3 MEDIUM
NETWORK
HIGH
LOW
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 10%
Affected Products (NVD)
VendorProductVersion
chamilochamilo_lms
𝑥
< 1.11.38
chamilochamilo_lms
2.0.0:alpha1
chamilochamilo_lms
2.0.0:alpha2
chamilochamilo_lms
2.0.0:alpha3
chamilochamilo_lms
2.0.0:alpha4
chamilochamilo_lms
2.0.0:alpha5
chamilochamilo_lms
2.0.0:beta1
chamilochamilo_lms
2.0.0:beta2
chamilochamilo_lms
2.0.0:beta3
chamilochamilo_lms
2.0.0:rc1
chamilochamilo_lms
2.0.0:rc2
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/chamilo/chamilo-lms/commit/22b1cb1c609b643765c88654155aba27070c927e
https://github.com/chamilo/chamilo-lms/commit/af6b7002af7c15825e98fc522e2ead0d00cacaa3
https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-c4ww-qgf2-v89j