CVE-2026-31940

Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, in main/lp/aicc_hacp.php, user-controlled request parameters are directly used to set the PHP session ID before loading global bootstrap. This leads to session fixation. This vulnerability is fixed in 1.11.38 and 2.0.0-RC.3.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.6 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/chamilo/chamilo-lms/commit/ce0192c62e48c9d9474d915c541b3274844afbf9	Patch
https://github.com/chamilo/chamilo-lms/commit/e337b7cc74a0276a0b4f91f9282204d20cac1869	Patch
https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-4gp7-cfjh-77gv	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, 22:10

Type	Values Removed	Values Added
Summary		(es) Chamilo LMS es un sistema de gestión del aprendizaje. Antes de 1.11.38 y 2.0.0-RC.3, en main/lp/aicc_hacp.php, los parámetros de solicitud controlados por el usuario se utilizan directamente para establecer el ID de la sesión de PHP antes de cargar el bootstrap global. Esto conduce a fijación de sesión. Esta vulnerabilidad está corregida en 1.11.38 y 2.0.0-RC.3.

Information

Published : 2026-04-10 18:16

Updated : 2026-10-26 22:10

NVD link : CVE-2026-31940

Mitre link : CVE-2026-31940

CVE.ORG link : CVE-2026-31940

JSON object : View

Products Affected

chamilo

chamilo_lms

CWE

CWE-384

Session Fixation

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